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586d59a432
Previously only the option to limit the scale range of the scaling was available. Now you can also choose to limit the corresponding rendered size in mm.
47 lines
1.5 KiB
Plaintext
47 lines
1.5 KiB
Plaintext
/*!
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* \class QgsMapUnitScale
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* \brief Struct for storing maximum and minimum scales for measurements in map units
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*
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* For measurements in map units, a minimum and a maximum scale can be defined.
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* Outside this range, the measurements aren't scaled anymore proportionally to
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* the map scale.
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*/
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class QgsMapUnitScale
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{
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%TypeHeaderCode
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#include <qgsmapunitscale.h>
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%End
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public:
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/** Constructor for QgsMapUnitScale
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* @param minScale minimum allowed scale, or 0.0 if no minimum scale set
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* @param maxScale maximum allowed scale, or 0.0 if no maximum scale set
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*/
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QgsMapUnitScale( double minScale = 0.0, double maxScale = 0.0 );
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/** The minimum scale, or 0.0 if unset */
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double minScale;
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/** The maximum scale, or 0.0 if unset */
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double maxScale;
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/** Whether the minimum size in mm should be respected */
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bool minSizeMMEnabled;
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/** The minimum size in millimeters, or 0.0 if unset */
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double minSizeMM;
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/** Whether the maximum size in mm should be respected */
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bool maxSizeMMEnabled;
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/** The maximum size in millimeters, or 0.0 if unset */
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double maxSizeMM;
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/** Computes a map units per pixel scaling factor, respecting the minimum and maximum scales
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* set for the object.
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* @param c render context
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* @returns map units per pixel, limited between minimum and maximum scales
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*/
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double computeMapUnitsPerPixel( const QgsRenderContext& c ) const;
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bool operator==( const QgsMapUnitScale& other ) const;
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bool operator!=( const QgsMapUnitScale& other ) const;
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};
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