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Introduction

Image management and manipulation are part of Geocap's functionality. An image with type Image Data has many options under -> Utilities as well in the shell command ima. A nice image on the screen can be saved as a Screenshot.

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Exercises

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Import

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Import images

  1. Read about Importing Images in the main documentation.
  2. Find an image on internet and import it.
  3. Create a random surface or use one already generated and map the image on the terrain.

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Geo-reference the map

  1. Read about 8. Images and Georeferencing in the main documentation.
  2. Find an image on internet that is correctly georeferenced.
  3. Create a random surface for the same coordinate area or find the corresponding etopo2 dataset.
  4. Drape the image on the terrain.
  5. Save the image as a Screenshot.
  6. Rename the Screenshot and export it.

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Calibrate cross section

  1. Read about Vertical Image Calibration in General Tutorials.
  2. Try to replicate that tutorial using your own data.
  3. Write a summary of your steps and consider if you can make a workflow out of it.