Introduction
Digitizing is one of the most important ways the user can interact with Geocap to create new dataset. In contrast to typing in numbers in an editor, the digitizer gives the user the ability to interact with graphically displayed data.
On this page:
Quick digitizing
Make sure you have displayed all relevant data in 2D mode before you start the digitizing. The Quick digitizer is started from Tools > Quick Digitizing.
Quick digitizing main buttons
- Click Start digitizing and use the left mouse button to digitize.
- Click Connect to start if you want to close the polygon.
- Click Stop digitizing to save the line/polygon.
You can also use the keyboard short-cut keys to digitize. The y will attach the cursor to the graphics. No click just y.
A digitized line is saved in the workspace by default. This means you will have to copy it from the workspace and into the project. You can also use the Save digitized line also in folder option to save it directly in the project. Just tick the check box and browse in the folder you would like to save it to.
Digitizing in 3D
Quick digitizing operates in 2D mode by default and one can just click with the left button key to digitize. It is however possible to enter 3D mode and perform digitizing in 3D. In that case set the Select mode to 3D or just set the graphics in 3D and follow the guide lines to get control.
Guide lines for 3D digitizing
- Start Quick digitizer as usual. Then one can digitize by attaching the cursor to a surface or use a 3D cursor.
- Digitize by attaching to a surface:
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- Use keyboard y to attach to a surface.
- Apply the manipulator under Tools to get a flat surface i x|y|z direction to attach to.
- Digitize freely and use a 3D cursor.
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- Keyboard p will digitize a position without any position control unless a 3D cursor.
- A 3D cursor is toggled on/off by keyboard i. Position the 3D cursor and use p to digitize.
- Turn off all digitize by Stop digitizing.
3D digitizing is made easy by using y to attach to a surface and the manipulator to get control elsewhere. A typical case for 3D digitizing is to supply some extra points to grid input around a salt diaphir or specific structure that is not properly covered by the input points.
The quick digitizer menu