When you create a cell, you define the cell origin (the location around which the cell is placed) and the cell type. There are three types of cells: graphic point and parametric.
The symbology (color, line style, and line weight) of a graphic cell is determined when it is created, whereas a point cell assumes the active symbology when placed. The active template and level of a parametric cell is applied at the time of placement. Graphic and parametric cells rotate when a view is rotated, while a point cell is view-independent. A point cell can be especially useful for text.
The differences between graphic, point, and parametric cells are summarized in this table:
|Graphic Cell||Point Cell||Parametric Cell|
|Level||level independent||placed on active level||placed on active level|
|Rotation||with view||view independent||with view|
|Symbology||active settings when created||active settings when placed||N/A|
When a cell is created, the symbology (that is color, line style, and line weight) of each element is established. When that cell is placed in a DWG file, this symbology is used. However, it is possible to leave the symbology open-ended by using ByCell. If ByCell is selected as the color, line style, and/or line weight, when the cell is placed the active attributes are used. For example, if a cell is created containing a square with color set to red and a circle with color set to ByCell, when the cell is placed into a DWG file with active color set to yellow, the square appears in red and the circle appears in the active color of yellow.