CartoType::TMapDataParam Class Reference

#include <cartotype_map_data.h>

List of all members.

Public Attributes
const MString *	iLayer
TRect	iClip
int32	iResolution
const CLayerStyle *	iStyle
const CMapDataCondition *	iCondition

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Detailed Description

Parameters supplied to CMapDataContext::Search.

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Member Data Documentation

TRect CartoType::TMapDataParam::iClip

The clip rectangle, specified using the point format and map datum of the map. At least all objects that overlap this area are returned. If the rectangle is empty all objects are returned. Note that the rectangle will not actually be a rectangle when converted to pixels, so some care must be taken in making it large enough to cover the whole of the map rectangle.

const CMapDataCondition* CartoType::TMapDataParam::iCondition

If non-null, conditions to be used when searching; These conditions override those implied by iStyle; if both are non-null, iStyle is ignored.

const MString* CartoType::TMapDataParam::iLayer

The name of the current map layer if any.

int32 CartoType::TMapDataParam::iResolution

The resolution in metres per pixel, or 0 if unknown. This parameter allows low-resolution data to be used if appropriate, saving loading and drawing time.

const CLayerStyle* CartoType::TMapDataParam::iStyle

If non-null, the style to be used when drawing the objects. If the style has conditional styles, they will be used to restrict the objects that are returned. Only objects fulfilling one of the conditions are returned.

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The documentation for this class was generated from the following file:

• cartotype_map_data.h