City Designer 2 templates have lots of pre-defined layers to make it easy for you to create your urban areas. The demographic information is stored on the versus BLDNG layers, the rest of the houses on the various STRUCTURES layers. Because CD2 uses multi-layered buildings, it has its own Change House layer command.
When you place a symbol, what you see is a reference to the symbol in the drawing. This reference is placed on the current layer. If you select entities on this layer, any symbols you have placed on the layer will be selected. If you hide the layer, all references on that layer will be hidden, even those parts of the symbol on visible layers.
In addition, however, symbol definitions contain entities that have layers. If you hide these layers, they will be hidden in any references in the drawing as well.
City Designer 2 symbols are drawn on various layers, shown below.
Houses share most of their layers with CD2 symbols. There are two important differences. When you draw a house, there is a solid filled area placed on the current layer that is used for demographic information. This is instead of the STRUCTURES (COLOR) layer used in symbols. Hiding this layer does NOT hide the whole house.
Use these to add your house and city symbols if you want your maps to contain demographic information. Use Color Layers to add the demographic information.
These are used to contain the various parts of houses added using symbols and created using the HOUSE command.
|
LAYER |
PURPOSE |
|
STRUCTURES (COLOR) |
Used by Symbols only. Show it if you want to see demographic information. |
|
STRUCTURES (FILL STYLE) |
Used for roof hatching in symbols and Houses. Hide this for a faster redraw. |
|
STRUCTURES (SHADING) |
Contains the solid filled area of roofs. Hide this to see demographics. |
|
STRUCTURES (OUTLINE) |
Shows a line outline of the building. |