Great Topics about the MapCanvas

The Rotate function allows rotation of the MapCanvas in order to optimize the view. The zoom level and center of the MapCanvas will not be modified.

• Example: Rotate the MapCanvas so that north is pointing downwards and then reset the rotation of the MapCanvas so that north is pointing again upwards.
• Methodology:
  1. Single click on the north direction button of the compass rose or open the Map 2D Navigation menu and choose “rotate”.
  2. Click, hold the button pressed and drag the MapCanvas to the preferred orientation. The north direction button at the compass rose shows the position of the north.
  3. To reset north back on top of the MapCanvas, click at the north direction button or open the Map 2D Navigation menu and choose “rotate to north”.

When the Coordinate Reference System in Theory of datasets and images is set, it is possible to project them to other MapCanvas Coordinate Reference Systems.

• Example: Open two datasets with a defined Coordinate Reference Systems: an image and a vector file. Change the MapCanvas CRS and check the consequences of this change.
• Methodology:
  1. Add two datasets to Orbit GIS with a defined CRS.
  2. Click at the CRS in the Map Statusbar.
  3. Change the CRS and choose another projection.
  4. Overview the effect of this change in CRS and projection.

A new feature in Orbit GIS is the possibility to zoom in or out to the current cursor position by scrolling. This makes it very easy to navigate to a specific location.

• Example: Open a dataset with all countries of the world and zoom to Brazil by only using the scroll wheel of the mouse.
• Methodology:
  1. Move the mouse pointer to the desired position.
  2. Use the scroll wheel of the mouse to zoom in to the position of the mouse pointer.
  3. Repeat the first two steps to zoom in to the desired position and the desired scale.

Use the search field in the Main Toolbar to search fast for attributes in the datasets. Typing anything in the search field and clicking <ENTER> will open the Find Objects tool.

• Example: Search for attributes matching with “Spain” in the visible datasets.
• Methodology:
  1. Enter “Spain” in the search function in the main toolbar
  2. Click <ENTER> to open the Find Object Tool and to see the attributes matching with the entered value.