# Layer Modify

- Projection
- Position
- Visibility
- View

Change here the visual representation for a single layer or a list of layers.

To modify a layer, click over the graphic area to open a menu and choose a layer, or write its identification (name and number) on the Layer entry. To modify a list of layers, press the button List (after creating the list of layers with Layer->Select). Parameters for empty entries or Local choices remain unchanged.

To change a layer name write the new name in the Layer entry, followed by the layer number (GAMGI needs the number to identify the layer). To change the name for a list of layers, press List first and then write the new common name in the Name entry.

### R, G, B

The R, G, B entries define the color of the layer background, from black (0.0, 0.0, 0.0) to white (1.0, 1.0, 1.0). When multiple layers are visible, GAMGI always shows the background color of the current layer.

### Axes

To show the layer referential axes, set the Axes option to Yes. The three axes use the rgb color scheme: red for the first axis, green for the second and blue for the third.

### Scale

Change the size of everything contained in the layer, except lights. Layer objects are scaled around the layer center, defined by the Center parameter.

The visual representation of an object is always scaled by its own scale factor multiplied by the scale factor of all its parent objects until layer, inclusive.
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