====== Graphic Parameters ======

Orbit's graphic engine can be controlled by many graphic parameters. These parameters can be set by the legend definition.

Using a classification, you can specify which graphic parameters should be modified by the attribute classes you set.

===== Grouped Graphic Parameters =====

^ Group ^ Allows to specify a value for each class in the classification for : |
| All Parameters | all parameters according to the spatial type |
| Group : Line | all Line-related parameters only |
| Group : Fill | all Area-related parameters only, determining the fill for the area. |
| Group : Point | all Point-related parameters only |

To edit grouped parameters, a popup editor window appears presenting the according parameters in one window.

===== Basic Graphic Parameters =====

==== Overall Parameters ====

These parameters have general use, overruling other more detailed parameters

^ Parameter ^ Comment ^ Component ^
| Parameter : Visibility | Renders this model visible/invisible | {{visibility.gif?15x15&nolink}} |
| Parameter : Color | Sets overall color | {{color.gif?64x22&nolink}} |
| Parameter : Transparency | Sets overall transparency | {{transparency.gif?76x17&nolink}} |

==== Parameters for Points ====

These parameters are valid for all appearances of symbols, indicated by the prefix of the parameter name :

^ Parameter Pattern ^ Comment ^
| Parameter : Symbol.<name> | the basic display of objects of spatial type Point |
| Parameter : Symbol.<name> | the symbol placed on the lines of objects of spatial type Line |
| Parameter : Symbol.<name> | the symbol placed on an outline of objects of spatial type Area |

The parameters available in the classification list are equal to the parameters presented on the [[orbitgis:datasets:properties:legend:all_symbol_parameters|Symbol Parameters]] Editor window.

Note : The use of [[orbitgis:legend#Units|Units]] in graphic parameters is explained at the end of this page.

==== Parameters for Lines ====

These parameters are valid for all types of Lines, indicated by the prefix of the parameter name :

^ Parameter Pattern ^ Comment ^
| Parameter : Line.<name> | the basic display of objects of spatial type Line |
| Parameter : Outline.<name> | the outline of objects of spatial type Area |
| Parameter : Fill.Hatchline1.<name> | the optional appearance of hatch-type fills for objects of spatial type Area |
| Parameter : SymbolRepetition.<name> | the parameters for an optional symbol appearance on Line or Outline |

Note : The use of [[orbitgis:legend#Units|Units]] in graphic parameters is explained at the end of this page.

==== Parameters for Areas ====

The parameters for Area consist out of Fillings (area-specific parameters) and an Outline. Outline parameters equal Line parameters as you can read above.

^ Parameter Pattern ^ Comment ^
| Parameter : Fill.<name> | the fill display of objects of spatial type Area |
| Parameter : Fill.Hatchline1.<name> | the optional appearance of hatch-type fills for objects of spatial type Area, which are defined as lines. |

Note : The use of [[orbitgis:legend#Units|Units]] in graphic parameters is explained at the end of this page.