Marine gGis

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MIKE BY DHI 2009

MIKE MARINE GIS

Marine GIS Extension to ArcMap

User Guide


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Please Note

Copyright

This document refers to proprietary computer software which is protected

by copyright. All rights are reserved. Copying or other reproduction of this manual or the related programs is prohibited without prior written

consent of DHI. For details please refer to your 'DHI Software Licence

Agreement'.

Limited Liability

The liability of DHI is limited as specified in Section III of your 'DHI

Software Licence Agreement':

'IN NO EVENT SHALL DHI OR ITS REPRESENTATIVES (AGENTS

AND SUPPLIERS) BE LIABLE FOR ANY DAMAGES WHATSO-

EVER INCLUDING, WITHOUT LIMITATION, SPECIAL, INDIRECT,

INCIDENTAL OR CONSEQUENTIAL DAMAGES OR DAMAGES

FOR LOSS OF BUSINESS PROFITS OR SAVINGS, BUSINESS

INTERRUPTION, LOSS OF BUSINESS INFORMATION OR OTHER

PECUNIARY LOSS ARISING OUT OF THE USE OF OR THE INA-

BILITY TO USE THIS DHI SOFTWARE PRODUCT, EVEN IF DHI

HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

THIS LIMITATION SHALL APPLY TO CLAIMS OF PERSONAL

INJURY TO THE EXTENT PERMITTED BY LAW. SOME COUN-

TRIES OR STATES DO NOT ALLOW THE EXCLUSION OR LIMITA-

TION OF LIABILITY FOR CONSEQUENTIAL, SPECIAL, INDIRECT,

INCIDENTAL DAMAGES AND, ACCORDINGLY, SOME PORTIONS

OF THESE LIMITATIONS MAY NOT APPLY TO YOU. BY YOUR

OPENING OF THIS SEALED PACKAGE OR INSTALLING OR

USING THE SOFTWARE, YOU HAVE ACCEPTED THAT THE

ABOVE LIMITATIONS OR THE MAXIMUM LEGALLY APPLICA-

BLE SUBSET OF THESE LIMITATIONS APPLY TO YOUR PUR-

CHASE OF THIS SOFTWARE.'

Printing History

August 2005

November 2006

October 2007

January 2009


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4 MIKE Marine GIS


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C O N T E N T S

http://dhi%20software%20template%20cover.pdf/http://dhi%20software%20template%20cover.pdf/


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MIKE Marine GIS Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1 ABOUT THIS GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.2 Assumed User Background . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1 Short Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.2 Application Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Marine Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3 TOOL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1 Create Geodatabase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.2 Load Geodatabase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3 Show Geodatabase Properties . . . . . . . . . . . . . . . . . . . . . . . . 17

Survey Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4 TOOL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1 Load XYZ Data from ASCII File . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2 Load Line Data from ASCII File . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3 Save XYZ Data to ASCII File . . . . . . . . . . . . . . . . . . . . . . . . . 214.4 Save Line Data to ASCII File . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.5 Load XYZ Data from GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.6 Load Line Data from GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.7 Save XYZ Data to GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.8 Save Line Data to GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.9 XYZ Batch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.9.1 Batch file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5 TIPS AND TRICKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.1 Less Dense Point Measurement Collection . . . . . . . . . . . . . . . . . 27

5.2 Increasing Number of Points in Lines . . . . . . . . . . . . . . . . . . . . 27

5.3 Extract Points from Arbitrary Shape Files . . . . . . . . . . . . . . . . . . 27

5.4 Importing Multiple XYZ Data Files in Batch . . . . . . . . . . . . . . . . . 29

Transect Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6 TOOL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.1 Create Transect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33


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6.2 Create Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.3 Save Profile as dfs1 File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.4 Save Transect to GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.5 Save Profile to GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.6 Load Dfs1 File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.7 Load Transect from GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.8 Load Profile from GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.9 Plot Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7 TIPS AND TRICKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.1 Refine dfs1 Data File to Finer Grid Size Resolution . . . . . . . . . . . . . 37

7.2 Quality Assurance - Create Profile based on Selected Data . . . . . . . . 37

Coastline Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8 TOOL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.1 Create Baseline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2 Create Coastline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.3 Save Coastline as Dfs1 File . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.4 Save Baseline to GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.5 Save Coastline to GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.6 Load Dfs1 File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8.7 Load Baseline from GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438.8 Load Coastline from GDB . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8.9 Plot Coastline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9 TIPS AND TRICKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.1 Create New Coastline based on Old Coastline and Compare . . . . . . . 45

9.2 Edit Coastline Data in ArcMap . . . . . . . . . . . . . . . . . . . . . . . . . 45

Surface Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10 TOOL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 Load dfs2 File to Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.2 Load Mesh to Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.3 Load dfsu to Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10.4 Display Arrows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10.5 Save Mesh from Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.6 Save Dfs2 from Raster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.7 Alternative Presentation of dfs2 files . . . . . . . . . . . . . . . . . . . . . 52

10.7.1 Add Data button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52


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10.7.2 Time Series Presentation toolbar . . . . . . . . . . . . . . . . . . 53

11 TIPS AND TRICKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

11.1 Displaying dfs2 Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

11.2 Displaying Mesh Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

11.3 Displaying Arrows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

11.4 Customized DHI Projections . . . . . . . . . . . . . . . . . . . . . . . . . . 59

11.4.1 Mapping old DHI Projection strings . . . . . . . . . . . . . . . . . 59

Image Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

12 TOOL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.1 Add Monitoring Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.2 Add Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.3 Load Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

13 TIPS AND TRICKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

13.1 Site Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67


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M I K E M A R I N E G I S O V E R V I E W


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Purpose

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1 ABOUT THIS GUIDE

1.1 Purpose

The main purpose of this User Guide is to get you started in the use of the

Marine GIS modules included in MIKE GIS.

Presently Marine GIS contains the following tools:

The Marine Manager

Contains tools for creating and loading databases

The Survey Manager

Contains tools for importing, saving and exporting measured data

The Transect Manager

Contains tools for creating, storing and analysing cross-shore profiles

The Coastline Manager

Contains tools for creating, storing and analysing coastline alignments

The Surface Manager

Contains tools for displaying 2D data files in DHI format.

The Image Manager

Contains tools for referencing images to points

1.2 Assumed User Background

It is assumed that the user already is an experienced user of ESRI’s Arc-

Map and the facilities herein.

Furthermore, the user must have knowledge about the DHI numerical

models and the data files in the DHI standard data formats that are used

therein.


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About This Guide

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Short Description

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2 INTRODUCTION

2.1 Short Description

Marine GIS is a sample of tools that enables the user to link the advan-

tages of ArcMap to the DHI numerical modelling system by displaying

and processing marine data in the standard DHI data format.

MIKE Marine GIS is generally used in coastal projects for basically two

purposes:

1 to provide a single, consolidated data storage for field measurements

2 as a tool for visualizing and analysing data

For example, data can be analysed for changes in the bathymetry or coast-

line, as such changes occur over a period of time, and visualized in order

to present model simulation results within a GIS framework.

2.2 Application Areas

Marine GIS can be applied to a wide range of marine related data process-

ing, for example:

as data storage for measurements obtained during the monitoring cam-

paigns

for inspection of 2D simulation bathymetries before performing the

actual simulation and to present simulation results within ArcMap

for comparison of simulation results with field measurements in the

form of time series

for close analysation of the evolution of the bathymetry and coastline

for different measurement campaigns

2.3 Examples

A comprehensive step-by-step training example covering the use of the

features in Marine GIS is provided with the installation. You may install

the files for this example by using the ‘DHI GIS Extensions Examples’

entry located in the Help drop-down menu in the ArcMap Main Menu

toolbar.


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Introduction

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Furthermore, the documentation for each Manager contains a section with

Tips-and-Tricks, which describes examples of more complex use of some

of the utilities.


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M A R I N E M A N A G E R


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Create Geodatabase

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3 TOOL OVERVIEW

The Marine Manager contains tools for creating and importing a database.

3.1 Create Geodatabase

This tool will create a geodatabase (GDB) for use in your project. Once

created it will be regarded as the active GDB for the project GIS (save the

Time Series Manager).

You have to specify which projection you want to apply to the GDB and

the centre position for the area. The centre position must be defined in the

selected projection coordinates.

The spatial extension of the GDB will automatically be created to a maxi-

mum extension with reasonable accuracy for the stored data. By definition

the created geodatabase will be able to store values in a range within 1000

km from the specified centre position and with an accuracy of 0.001 m.

3.2 Load Geodatabase

This tool imports an existing geodatabase and sets it as the active GDB for

the project.

3.3 Show Geodatabase Properties

This tool shows the name and extension of the active geodatabase in the

project.


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Tool Overview

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S U R V E Y M A N A G E R


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Load XYZ Data from ASCII File

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4 TOOL OVERVIEW

The Survey Manager contains tools for managing measured data such as

points and lines.

All data must be contained in the Survey group data in ArcMap for the

Survey Manager to work.

It is intended that you use this manual when you are doing model applica-

tions and need to know how various input, output, etc. can be specified for

the Survey Manager in MIKE GIS. It is assumed that you are familiar with

the operation of ArcMap.

4.1 Load XYZ Data from ASCII File

This tool will import XYZ points to ArcMap. The points must be defined

in an ASCII file where the X, Y and Z coordinates are placed in columns

divided by tabs or spaces.

After selecting the file you must define the columns for the X, Y and Z

values, respectively, as well as the projection for which the data is valid.

The survey points will then be included in ArcMap as a point feature con-

tained in the ‘Surveys’ group layer.

4.2 Load Line Data from ASCII File

This tool will import XY points as a line to ArcMap. The points must be

defined in an ASCII file where the X and Y coordinates are placed in col-

umns divided by tabs or spaces.

After selecting the file you must define the columns for the X and Y val-

ues, respectively, as well as the projection for which the data is valid.

The survey line will then be included in ArcMap as a line feature con-


4.3 Save XYZ Data to ASCII File

This tool will save the contents of a point or line feature in ArcMap as

XY(Z) points in an ASCII file. The coordinates will be saved in the map’s

projection.


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Tool Overview

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The point selection value defines the frequency of the points in the source

data. The file name defines the ASCII file containing the saved values.

In case you want to store a point feature, the Z value is found from the

source points if no Z column exist in the feature class.

In case you want to store a line feature, the source points is the points

defining the polyline. The Z value is found from the Z column, if any.

4.4 Save Line Data to ASCII File

This tool will save the contents of a point or line feature in ArcMap as

XY(Z) points representing a line in an ASCII file. The coordinates will be

saved in the map’s projection.

The spacing value defines the distance between points on the polyline of

the source data. The filename defines the ASCII file containing the saved

values.

In case you want to store a point feature, an internal polyline is created

from the points. The Z value is found by interpolation between the points.

In case you want to store a line feature the Z value is found from the Z col-

umn, if any.

4.5 Load XYZ Data from GDB

This tool will load point features from the active geodatabase (GDB).

Press Search to get a list of available point features in the GDB.

Select one or several features and press OK.

The feature points will then be included in ArcMap as point features con-


4.6 Load Line Data from GDB

This tool will load a line feature from the active geodatabase (GDB).

Press Search to get a list of available line features in the GDB.

Select a feature and press OK.


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Save XYZ Data to GDB

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The feature line will then be included in ArcMap as a line feature con-


4.7 Save XYZ Data to GDBThis tool will save a point feature in ArcMap to the active geodatabase

(GDB).

You specify the feature layer from the Layer name drop-down box and

fill out the descriptions (Survey and Measurement Device) that will

describe the data in the GDB.

If you have already defined a Measurement device name you may select

this from the drop-down box.

You will be able to follow the progress of the save-to-GDB application in

the lower left corner of the ArcMap window.

4.8 Save Line Data to GDB

This tool will save a line feature in ArcMap to the active geodatabase

(GDB).

You specify the feature layer from the Layer name drop-down box and

fill out the descriptions (Survey and Measurement Device) that will

describe the data in the GDB.

If you have already defined a Measurement device name you may select

this from the drop-down box.



4.9 XYZ Batch

This tool will read the XYZ points from a number of ASCII XYZ files and

save them in the active GeoDatabase, without importing the points into

ArcMap.

To use this tool you will need to create an Batch file where each line in the

file contains information about the survey, measuring device and how the


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XYZ Batch

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If the elements 2 to 5 are not defined in the file, the default values are

used. If element 6 is missing, the spatial reference from the active geoda-

tabase defines the projection of the data in the XYZ file.

SurveyThe Survey group may contain up to 4 elements and must start with the

Identifier “Survey”. A definition of the 4 elements is shown in Table 4.2.

If the elements 3 and 4 are not defined in the file, the default values are

used.

Measuring device

The Measuring device group may contain up to 2 elements and must start

with the Identifier “MeasDev”. A definition of the 2 elements is shown in

Table 4.3.

If the group or elements are not defined in the file, the default values are

used.

Table 4.2 Definition of values in Survey group.

Example:

Survey ( Isle ; Area 1 ; 2004/05/22 08:00:00 ; 2004/05/23 16:00:00 )

Element Default Value Comment

1 ““ Survey name

2 ““ Survey description3 01/01/0001 00:00:00 Optional Start date and time of survey

4 31/12/9999 23:59:59 Optional End date and time of survey

Table 4.3 Definition of values in Measuring device group.

Example:

MeasDev ( Echo sounding ; Boat AX9 )

Element Default Value Comment

1 “Unknown“ Optional Measuring device name

2 ““ Optional Measuring device description


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Tool Overview

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Less Dense Point Measurement Collection

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5 TIPS AND TRICKS

This section contains examples on how to use the Survey Manager.

5.1 Less Dense Point Measurement Collection

Some times a collection of points can be very dense. Then it might be fea-

sible to extract a representative subset of the points for further processing.

You can do that by setting the point selection value to more than 1.

5.2 Increasing Number of Points in Lines

When you create a bathymetry file in MIKE Zero, you will need a fileconsisting of the land contour points. In case your source is a line feature

with very few points, you can increase the number of points by exporting

the line to ASCII and setting the Spacing to a smaller value than the initial

spacing in the file. The line points in the ASCII file will then be created by

interpolation of the original line points.

PLEASE NOTE:

If you set the Spacing to 0.0, the ASCII file will contain the original

points representing the line.

5.3 Extract Points from Arbitrary Shape Files

The utilities in Marine GIS are designed to work with features that are

imported using the Survey Manager. You can, however, ‘cheat’ the system

by making some editions in the features in ArcMap.

Assume that you have received some line data in a shape file. Each line

define a contour line, see Figure 5.1.

To extract the XYZ points describing the depth contours you have to do

the following:

1 Create a Surveys group layer by importing an existing XYZ file or just

by creating a group layer named ‘Surveys’.

2 ‘Drag-and-drop’ the ContourLines layer to the Surveys group layer.

3 Open the Attribute table for the ContourLines layer and add a field

named ‘Z’ in the table that contains the contour values.


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Tips and Tricks

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The field type must be defined as ‘Double’ with a precision and scale

of 18 and 11, respectively.

4 Select ‘Save Survey Points to ASCII...’ from the Survey Manager,

select the ContourLines layer and specify the point selection to 1 and

the ASCII file name. Press OK.

This will create an ASCII file with the XYZ coordinates of the contour

curves.

Figure 5.1 Example of contour lines in a shape file.

Shape file: by courtisy of County of Frederiksborg.

Background map: (c)Kort-og Matrikelstyrelsen (G102-95)


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Importing Multiple XYZ Data Files in Batch

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5.4 Importing Multiple XYZ Data Files in Batch

If you have a large number of files that contain XYZ data points it can be

a tedious task first to import them into ArcMap for display and then saving

each file in the GeoDatabase.

If you are convinced the data in the files are valid and ready for import

into the GeoDatabase you can save time by using the XYZ Batch import

of XYZ data.

If the XYZ data files is constructed to fit the default input format and the

survey time is not of importance, the information in the Batch file can be

kept at a minimum as shown in Figure 5.2.

Figure 5.2 Example of Batch file with minimum information


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Tips and Tricks

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T R A N S E C T M A N A G E R


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Create Transect

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6 TOOL OVERVIEW



the Transect Manager in the Marine GIS Extension. It is assumed that youare familiar with the operation of ArcMap.

PLEASE NOTE:

When using the Transect Manager it is recommended that the map display

is showed in a projected coordinate system.

6.1 Create Transect

A transect is a straight line defined by a start position (x,y), orientation to North and extension (length).

You specify the transect by clicking the map at the location for the start

position and dragging the cursor to the end position of the transect while

the left mouse button is pressed. Following this the geographical informa-

tion of the transect will be displayed in a dialog box.

You may choose to change these parameters before you accept.

Once accepted the transect is displayed in ArcMap as a straight line.

6.2 Create Profile

A profile is a number of values aligned along a transect, e.g. a bathymetry

profile along a line.

You specify which survey layer that contains the value you want to use for

the profile and which transect you want the profile to align to.

You have two options for selecting the values for the profile:

Distance

This implies that all XYZ points within the given distance will be

included in the calculation of the profile

Selection

This implies that only the selected XYZ points will be included in the

calculation of the profile


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Tool Overview

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The profile is calculated by projecting the chosen XYZ points perpendicu-

lar to the transect. The bathymetry values along the transect are defined as

the bathymetry values for the projected XYZ point.

The resulting profile is displayed in ArcMap by a point feature thatdefines the points in the profile. Furthermore, projection lines are dis-

played for the profile to show the basis of the calculation of the profile.

6.3 Save Profile as dfs1 File

You can save a profile to a space-equidistant profile in DHI dfs1 format.

The position and values for the single grid points are found by linear inter-

polation.

First select the profile layer to save.

You then specify the file name and position of the dfs1 file and the grid

step in the file. The minimum distance between two points along the

selected transect is set as default grid step.

The Data type refer to the angle definitions for the particular dfs1 file type.

6.4 Save Transect to GDBYou can save a transect to the active geodatabase (GDB).

First select the transect to save from the Transect drop-down box.

You then fill out the Transect Properties that will describe the data in the

GDB.



6.5 Save Profile to GDB

You can save a profile to the active geodatabase (GDB). In order to save

the profile the associated transect must be stored in the GDB beforehand.

First select the profile to save from the Profiles drop-down box.


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Load Dfs1 File

35

You then fill out the Profile Properties that will describe the data in the

GDB.



6.6 Load Dfs1 File

You can load a dfs1-file, representing a profile, from the hard disk to Arc-

Map.

First you select the file to load.

Parameters from the file will be extracted and you will be given the possibility to set the position of the profile.

If no known projection is defined in the dfs1 file, the projection is taken as

UTM-30 per default.

The orientation values display the ArcMap definition of a transect as well

as the LITPACK definition of a cross-shore profile.

The profile is displayed in ArcMap by a point feature that defines the

points in the profile and a line feature defining the transect. You may use

the transect to create new profiles in ArcMap.

6.7 Load Transect from GDB

You can load a transect from the active geodatabase (GDB).

All available transects in the GDB will be listed in a dialog. Select a fea-

ture and press OK.

The transect is displayed in ArcMap as a straight line.

6.8 Load Profile from GDB

You can load a profile from the active geodatabase (GDB).

All available profiles in the GDB will be listed in a dialog. Select a feature

and press OK.


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Tool Overview

36 MIKE Marine GIS

The profile is displayed in ArcMap by a point feature that defines the

points in the profile and a line feature defining the transect. You may use

the transect to create new profiles in ArcMap.

6.9 Plot Profile

You can plot a profile shown in ArcMap in a separate (dockable) window.

The y-axis will display the values for the points in the profile.

You have the option to plot two profiles in the same plot.

If you have two profiles you may display the difference between the two

curves. Assuming the data values reflect the bathymetry, the difference in

volume is calculated and shown in the plot.


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Refine dfs1 Data File to Finer Grid Size Resolution

37

7 TIPS AND TRICKS

This section contains examples on how to use the Transect Manager.

7.1 Refine dfs1 Data File to Finer Grid Size Resolution

In case you have a line series file where you need to refine the grid size

resolution, you can use the Dfs1 Import/Export utilities.

First import the dfs1 file to ArcMap using the Load Dfs1 File utility.

Then save the data to a new dfs1 file using the Save Profile as dfs1 File

utility, where you specify the new grid size.

Figure 7.1 shows a result of this process.

Figure 7.1 Subset of profile. Old profile DX = 10 m, New profile DX=2 m

7.2 Quality Assurance - Create Profile based on Selected

Data

The plot facility can also be used for quality assurance before exporting

profiles for model simulations.

When first creating a profile from all points, the result may seem unrealis-

tic to you. If you then select all points apart from the odd points, and cre-

ate a profile from those, the profile will be different. The difference is seen

in the Plot window.

Figure 7.2 shows an example of two profiles, created on basis of the same

transect and source points. In Profile 2 some of the points are omitted in

the generation of the profile.


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Tips and Tricks

38 MIKE Marine GIS

Figure 7.2 Subset of profiles.

Profile 1 is created using all points within 100 m from the transect

Profile 2 is created using selected points


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39

C O A S T L I N E M A N A G E R


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40 MIKE Marine GIS


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Create Baseline

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8 TOOL OVERVIEW



the Coastline Manager in the Marine GIS Extension. It is assumed thatyou are familiar with the operation of ArcMap.

PLEASE NOTE:

When using the Coastline Manager it is recommended that the map dis-

play is showed in a projected coordinate system.

8.1 Create Baseline

A baseline is a straight line defined by a start position (x,y), orientation to North and extension (length).

You specify the baseline by clicking the map at the location for start posi-

tion and dragging the cursor to the end position of the baseline. Following

this the geographical information of the transect will be displayed in dia-

log.

You may choose to change these parameters before you accept.

Once accepted the baseline is displayed in ArcMap as a straight line.

8.2 Create Coastline

A coastline is the distance of a number of values projected to a baseline,

e.g. a coastline position referred to a straight line.

You specify which survey layer that contains the value you want to use for

the coastline and which baseline you want the coastline to refer to.

You have two options for selecting the values for the coastline:

Distance

This implies that all XY points within the given distance will be

included in the calculation of the coastline.

Selection

This implies that only the selected XY points will be included in the

calculation of the coastline.


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Tool Overview

42 MIKE Marine GIS

The coastline is calculated by projecting the chosen XYZ points perpen-

dicular to the baseline. The data values along the baseline are defined as

the length of the projection lines.

The resulting coastline is displayed in ArcMap by a point feature thatdefines the points along the baseline and a line feature that defines the

coastline position, i.e. shoreline. Furthermore, projection lines are dis-

played for the profile to show the basis of the calculation of the coastline.

8.3 Save Coastline as Dfs1 File

You can save a coastline to a space-equidistant coastline in DHI dfs1 for-

mat. The position and values for the single grid points are found by linear

interpolation.

First select the coastline layer to save.

You then specify the file name and position of the dfs1 file and the grid

step in the file. The minimum distance between two points along the

selected transect is set as default grid step.

The Data type refers to the angle definitions for the particular dfs1 file

type.

8.4 Save Baseline to GDB

You can save a baseline to the active geodatabase (GDB).

First select the baseline to save from the Baseline drop-down box.

You then fill out the Baseline Properties that will describe the data in the

GDB.



8.5 Save Coastline to GDB

You can save a coastline to the active geodatabase (GDB). In order to save

the coastline, the associated baseline must be stored in the GDB before-

hand.


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Tool Overview

44 MIKE Marine GIS

All available coastlines in the GDB will be listed in a dialog. Select a fea-

ture and press OK.

The coastline is displayed in ArcMap by a point feature that defines the

points on the baseline, a line feature that define the coastline position anda line feature defining the baseline. You may use the baseline to create

new coastlines in ArcMap.

8.9 Plot Coastline

You can plot a coastline shown in ArcMap in a separate (dockable) win-

dow. The y-axis will display the distance from the baseline to the coast-

line.

You have the option to plot two coastlines in the same plot.

If you have two coastlines you may display the difference between the two

curves. The difference in area is calculated and shown in the plot.


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Create New Coastline based on Old Coastline and Compare

45

9 TIPS AND TRICKS

This section contains examples on how to use the Coastline Manager.

9.1 Create New Coastline based on Old Coastline and

Compare

Assume that you have previously analysed the position of a coastline

stretch. Your data has been saved in a geodatabase.

Now, several years later you have data from a new measuring campaign

and you want to view the changes in the coastline since the last campaign.

First open the geodatabase with the old data and import the coastline toArcMap.

Then import data from the new measuring campaign into ArcMap and cre-

ate a new coastline based on the ‘old’ baseline.

These two coastlines are now displayed in the ArcMap display. Press ‘Plot

coastline’ to plot the two coastlines in the dockable window. By selecting

‘Show difference’ you can see the position of erosion and deposition areas

as well as the volume change of sediment along the coastline.

PLEASE NOTE:

Please decide which coordinate system you will work with before you

start to generate or import baselines and coastlines. If you mix data from

different coordinate systems, the displayed data may seem odd (e.g. pro-

jection lines not perpendicular to the baseline). To compare coastlines

using the ‘Plot Coastlines’ utility the baselines have to be cre-

ated/imported within the same coordinate system.

9.2 Edit Coastline Data in ArcMap

If you have a line series file defining a coastline you may wish to modify it

according to a map or new measuring campaign.

Load the dfs1 file to ArcMap and display the features on top of the map.

The coastline sub-group contains a point feature defining the distance

from the coastline to the baseline. If you edit these values and save the


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Tips and Tricks

46 MIKE Marine GIS

dfs1 file, you have changed the coastline position, but you cannot see the

effect of your changes until you load the dfs1 file again.

The shoreline sub-group contains a line feature defining the position of the

shoreline. Editing this feature will not have any direct effect on the dfs1file.

If you want to save your editions to a line series file, you must ‘drag-and-

drop’ the line feature into the ‘Surveys’ group and save it as XYZ points

in and ASCII file. Then import the ASCII file as points, create a new

coastline based on the old baseline and save the new coastline to dfs1 file.

This method is more circumstantial, but you can follow the effect of you

changes in the process.


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47

S U R F A C E M A N A G E R


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48 MIKE Marine GIS


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Load dfs2 File to Display

49

10 TOOL OVERVIEW



the Surface Manager in the Marine GIS Extension. It is assumed that youare familiar with the operation of ArcMap.

The Surface Manager contains tools for managing 2D data files in DHI

standard format, i.e. dfs2 files, mesh files and dfsu files (2D).

Note that blanks are not allowed in the file name.

10.1 Load dfs2 File to Display

This option enables you to load selected items and time steps in a binarydfs2 file from the disk to ArcMap.

The file must be formatted as a DHI standard dfs2 file. This file standard

is used to store structured grids applied in the MIKE 21 and MIKE 3

model suite.

The projection information is per default taken from the header informa-

tion in the dfs2 file.

The data will be displayed as a group layer of temporary rasters, whereeach combination of the selected item(s) and time step(s) is a separate

raster image.

See also 10.7 Alternative Presentation of dfs2 files (p. 52).

PLEASE NOTE:

The length of the file name (without the dfs2 extension) cannot exceed 13

characters.

10.2 Load Mesh to Display

This option enables you to load an unstructured grid in ASCII format

(.mesh file) to ArcMap. The mesh file is typically generated by use of the

Mesh Generator in MIKE Zero and is used in the MIKE 21 and MIKE 3

FM series.

The projection information is per default taken from the first line in the

mesh file.


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Tool Overview

50 MIKE Marine GIS

The unstructured grid will be displayed as a group layer consisting of a

point layer and a polygon layer.

The point layer contains mesh points, i.e. the node point number, node

type and the bathymetry value for each node point in the mesh. The polygon layer contains mesh elements, i.e. information about the

element number, element type and the node point numbers that define

each element.

10.3 Load dfsu to Display

This option enables you to load an unstructured grid in dfsu format to Arc-

Map. This file standard is used to store output from the MIKE 21 and

MIKE 3 FM series modules.

You define the requested time step and item(s) by two dialogs in succes-

sion. If you want to view several time steps of the same file, you must load

the file again for each time step.


tion in the dfsu file.

The unstructured grid will be displayed as a group layer consisting of a

point layer and a polygon layer.

The point layer contains mesh points, i.e. the node point number, node

type and the bathymetry value for each node point in the mesh.

The polygon layer contains mesh elements, i.e. information about the

element number, element type and the node point numbers that define

each mesh element. Furthermore, the selected item values are stored by

each element.

PLEASE NOTE:

You cannot import data from dfsu files that contain more than one layer.

10.4 Display Arrows

This option enables you to load data from dfs2 files or dfsu files and dis-

play it as vectors.


tion in the dfs2 or dfsu file.


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Save Mesh from Display

51

You define the vectors from selecting 2 items in one of the two following

ways

(X-component, Y-component)

(Value, Direction to true North).

The vector length in the display is scaled according to the scale factor, e.g.

a scale factor of 1000 means that a velocity of 1 m/s is displayed by an

arrow of the length of 1000 m.

You may change the color and thickness of the arrows in the display by

normal ArcMap functionality, but you cannot change the length.

The arrow will be positioned with the starting point in the centre of the

mesh or grid element.

10.5 Save Mesh from Display

This option enables you to save a group of mesh point and mesh element

data from the display to a mesh file. The data must have been loaded using

the tools Load Mesh to Display or Load dfsu to Display.

The program saves the bathymetry data given in the point layer, so if you

have modified the SValue in the attribute table the changes will bereflected in the new mesh file. The polygon layer contain the mesh ele-

ments.

PLEASE NOTE:

If you modify the shape of any points or polygons in the group layer you

may violate the consistency of the mesh file (i.e. this is not advisable).

10.6 Save Dfs2 from Raster

This option enables you to create a Dfs2 file based on the information

given in any raster. You may define the whole area or a sub-area of the

raster.

You must define the origo, orientation, grid size and grid spacing of the

raster.

The values in the new dfs2 file is defined by the raster values.


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Alternative Presentation of dfs2 files

53

PLEASE NOTE:

Using this option there is no restriction regarding the number of characters

in the dfs2 file name.

10.7.2 Time Series Presentation toolbar If you include the dfs2 file by use of the Time Series Presentation toolbar

you can select which item to display and any number of time steps.

Figure 10.1 Time Series Presentation toolbar

The individual time steps can then be displayed one-by-one simply using

the forward and backward buttons on the toolbar or by selecting the time

step in the scroll-down list.

The item values can be animated in time using the play button and you

furthermore have the option to save the animation as a video using the

video icon.

Using this option the length of the file name (without the dfs2 extension)

cannot exceed 13 characters.


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Tool Overview

54 MIKE Marine GIS


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Displaying dfs2 Files

55

11 TIPS AND TRICKS

This section contains examples on how to use the tools in the DHI Surface

Manager. The emphasis is made on the interaction between the data from

DHI’s numerical models and the ArcMap capabilities.

PLEASE NOTE:

Before making any numerical simulations using DHI software or any

analysis in ArcMap it is recommended to choose a common projected

coordinate system for the entire project.

11.1 Displaying dfs2 Files

When making numerical model simulations it is vital that quality assur-ance of the input is carried out. For simulation of flow or wave fields the

bathymetry are a vital input parameter.

Once the model bathymetry has been generated (e.g. by MIKE Zero tools)

the data can easily be displayed in ArcMap on top of a background image.

This helps to ensure that the extension of the bathymetry is correct and no

errors have been made in the orientation of the numerical grid.

Figure 11.1 shows a bathymetry data file in dfs2 format displayed as a

raster on top of a background map. The model bathymetry layer is madesemi-transparent to enable the background layer to show.

After the simulation you can display the results in a GIS environment.

Figure 11.2 shows the results from a wave simulation.

The items ‘Wave height’, ‘Wave direction’ and ‘Wave period’ are chosen

for display for time step numbers 5, 15 and 25.


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Tips and Tricks

56 MIKE Marine GIS

Figure 11.1 Example of structured grid model bathymetry on top of background

image

Figure 11.2 Example of output data from M21NSW. The chosen output data is

grouped by items


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Tips and Tricks

58 MIKE Marine GIS

Figure 11.4 Example of flexible mesh model bathymetry (mesh file) on top of

background map. Node point values display the node type

11.3 Displaying Arrows

When making numerical model simulations the vector data is difficult to

illustrate by merely colour codes. It is necessary to define the direction ofthe data as well.

Once the model results have been generated (e.g. by MIKE Zero models)

the vector data can easily be displayed in ArcMap on top of a background

image.

Figure 11.5 shows a subset of a resulting flow field from a data file in dfsu

format displayed as a raster on top of a background map.


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Customized DHI Projections

59

Figure 11.5 Example of flow velocities (dfsu file) on top of background map.

The vectors are colored according to flow velocity (m/s).

11.4 Customized DHI Projections

If you have created you own projection using the MIKE Zero software

from DHI, you can copy the projection file into a folder containing the

ArcMap projections, e.g. ‘C:\Program Files\ArcGIS\Coordinate Sys-

tems\Projected Coordinate Systems\DHIProjections’, and make use of it

in ArcMap.

For dfs files created prior to DHI Software Release 2007, the DHI projec-

tion in the file is defined by a simple identification string. You may still

import these files into ArcMap using Surface Manager, but you will have

to map the projection string to a standard projection file applicable in Arc-Map.

11.4.1 Mapping old DHI Projection strings

When importing dfs data created prior to DHI Software Release 2007 into

ArcMap it is necessary to map the data from the DHI Projection identifi-

cation string stored in the file into an appropriate ArcMap ESRI Projec-

tion.


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Tips and Tricks

60 MIKE Marine GIS

A list of this mapping is outlined in the file ‘Coorsys_DHI_ESRI.dat’ that

is installed in the ‘bin’ directory with the DHI GIS Extension installation

(e.g. c:\Program Files\DHI\2009\bin).

The list contains of three columns;

1 String Name of DHI projection

2 Name of ESRI projection .prj file

3 String Name of ESRI projection

The GIS extension will search through all directories under e.g. ‘C:\Pro-

gram Files\ArcGIS\Coordinate Systems' when trying to find the requested

ESRI projection .prj file.

Some of the DHI projections has been mapped directly to an ESRI projec-

tion that is supplied with the ArcMap installation, but others are mapped

to DHI_ESRI projections, created particular for the DHI projection. These

files are included in the 'DHIProjections' directory, that is included with

the DHI GIS Extension installation (e.g. c:\Program Files\DHI\2009\

MIKE GIS\DHIProjections).

Pls. ensure that the folder ‘DHIProjections’ and its contents are copied to

the folder containing the ArcMap projections, e.g. ‘C:\Program Files\Arc-

GIS\Coordinate Systems\Projected Coordinate Systems\DHIProjections’.

This way the GIS Extension can find the required DHI_ESRI projection

file and convert the data between the DHI projection and the DHI_ESRI

projection.

If you have used DHI projections that are not included in the list, you can

just edit the ‘Coorsys_DHI_ESRI.dat’ file to include the new mapping.


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I M A G E M A N A G E R


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62 MIKE Marine GIS


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Add Monitoring Point

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12 TOOL OVERVIEW

The Image Manager contains tools for managing images (and other files)

that is related to a point feature in ArcMap.

It is necessary to load a Geodatabase (created by the Marine Manager)

before using this feature.

12.1 Add Monitoring Point

This option enables you to insert a monitoring point into the “Monitoring

points” feature layer (and thus into the geodatabase).

Press Add Monitoring Point... and the cursor will become a cross. Press Enter at the position where you want the new point. A dialog will pop-up

where you can alter the point position and specify a name for the point.

Per default the projection of the point is chosen as the projection of the

map display, but this can be altered.

12.2 Add Image

This option enables you to relate an image (or any file) on the harddisk to

a specific point in the “Monitoring points” feature layer.

Press Add Image... and a dialog will pop-up where you can select the point

to relate to by the point name.

You select the image file(s) by browsing to the file located on the harddisk

and selecting it. This will add the selected image file(s) to the list box.

Optionally you can to specify additional information about the image

file(s) such as date, photographer and description.

By pressing OK the information is stored in the Geodatabase. The image

file(s) are not stored inside the geodatabase, but is referenced by the abso-

lute path to the file on the harddisk.

Note: you can select any file on the harddisk, but presently only images

are displayed as a thumpnail preview in the Load Image tool.


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Site Inspection

65

13 TIPS AND TRICKS

This section contains examples on how to use the Image Manager.

13.1 Site Inspection

Assume that you have to perform a site inspection and need to gather data

for others to use for future investigation in your home office.

To supplement your site inspection report you may already on the site

begin to fill out a Geodatabase that contains some of the collected data,

referenced to specific locations at the site. This could for example be a

collection of photographs.

First create a new geodatabase (or open an existing one) where the loca-

tion of the site inspection in within the domain.

Then add monitoring points for each position at which a photograph (or

several) was taken.

For each monitoring point select the image files to that was taken at the

position and add information about the images. You may choose to add

several images at once (and relate the same information to then all) or add

one image at a time (and have specific information for each photograph).

Now you have inserted your knowledge about the site via the photographs

into the geodatabase and you can bring the geodatabase and image files

home, ready to install at another computer.

Once the image files are positioned in the same absolute path on a new

compute another person can easily get an overview of the available infor-

mation in the area by importing the geodatabase.

Note: All types of files can be referenced to a monitoring point. Thismeans that for example also information of sediment samples, measure-

ments and documentation can be referenced.

For time series files in dfs0 format you should refer to the points by drag-

and-drop in Temporal Analyst rather than using the Image Manager .


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66 MIKE Marine GIS


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I N D E X


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Index

A Active GDB . . . . . . . . . . . . . . . 17

Arrow . . . . . . . . . . . . . . . . . . 51

BBaseline . . . . . . . . . . . . . . . . . 41

CCheat . . . . . . . . . . . . . . . . . . 27

Coastline . . . . . . . . . . . . . . . . 41

Coastline Manager . . . . . . . . . . . 41

Compare coastlines . . . . . . . . . . 45

Contour . . . . . . . . . . . . . . . . . 27

DData type . . . . . . . . . . . . . . 34, 42

dfs1 format . . . . . . . . . . . . . 34, 42dfs2 file . . . . . . . . . . . . . . . . . 49

dfsu format . . . . . . . . . . . . . . . 50

GGDB . . . . . . . . . . . . . 17, 22, 34, 42

Geodatabase . . . . . . 17, 22, 34, 42, 45

IImage Manager . . . . . . . . . . . . . 63

Increase the number of points . . . . 27

LLITPACK . . . . . . . . . . . . . . . . 35

MMarine Manager . . . . . . . . . . . . 17

Mesh file . . . . . . . . . . . . . . . . . 49

Monitoring point . . . . . . . . . . . . 63

NNode type . . . . . . . . . . . . . . . . 57

P

Profile . . . . . . . . . . . . . . . . . . 33

R

Raster . . . . . . . . . . . . . . . . 49, 51

Raster band . . . . . . . . . . . . . . . 52

SScale factor . . . . . . . . . . . . . . . 51

Semi-transparent . . . . . . . . . . . . 55

Shoreline . . . . . . . . . . . . . . . . . 42

Surface Manager . . . . . . . . . . . . 49

Survey Manager . . . . . . . . . . . . 21

T

Time series files . . . . . . . . . . . . . 65Transect . . . . . . . . . . . . . . . . . 33

Transect Manager . . . . . . . . . . . 33

VVector . . . . . . . . . . . . . . . . . . 50

XXY points . . . . . . . . . . . . . . . . 21

XYZ points . . . . . . . . . . . . . . . . 21

ZZ value . . . . . . . . . . . . . . . . . . 22

Documents

Marine gGis