QHeightMapSurfaceDataProxy Class

See also QSurfaceDataProxy, Qt Data Visualization Data Handling

Scale height values to Y-axis.

Defaults to false.

When this property is set to true, the height values are scaled to fit on the Y-axis between minYValue and maxYValue.

This property was introduced in Qt 6.3.

Access functions:

• bool autoScaleY() const

• void setAutoScaleY(bool enabled)

Notifier signal:

• void autoScaleYChanged(bool enabled)

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This property holds the height map image to be visualized.

Access functions:

• heightMap() const

• void setHeightMap(const &image)

Notifier signal:

• void heightMapChanged(const &image)

This property holds the name of the file with a height map image to be visualized.

Access functions:

• heightMapFile() const

• void setHeightMapFile(const &filename)

Notifier signal:

• void heightMapFileChanged(const &filename)

This property holds the maximum X value for the generated surface points.

Defaults to 10.0.

When setting this property the corresponding minimum value is adjusted if necessary, to ensure that the range remains valid.

Access functions:

• float maxXValue() const

• void setMaxXValue(float max)

Notifier signal:

• void maxXValueChanged(float value)

This property holds the maximum Y value for the generated surface points.

Defaults to 10.0.

When setting this property the corresponding minimum value is adjusted if necessary, to ensure that the range remains valid.

This property was introduced in Qt 6.3.

Access functions:

• float maxYValue() const

• void setMaxYValue(float max)

Notifier signal:

• void maxYValueChanged(float value)

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This property holds the maximum Z value for the generated surface points.

Defaults to 10.0.

When setting this property the corresponding minimum value is adjusted if necessary, to ensure that the range remains valid.

Access functions:

• float maxZValue() const

• void setMaxZValue(float max)

Notifier signal:

• void maxZValueChanged(float value)

This property holds the minimum X value for the generated surface points.

Defaults to 0.0.

When setting this property the corresponding maximum value is adjusted if necessary, to ensure that the range remains valid.

Access functions:

• float minXValue() const

• void setMinXValue(float min)

Notifier signal:

• void minXValueChanged(float value)

This property holds the minimum Y value for the generated surface points.

Defaults to 0.0.

When setting this property the corresponding maximum value is adjusted if necessary, to ensure that the range remains valid.

This property was introduced in Qt 6.3.

Access functions:

• float minYValue() const

• void setMinYValue(float min)

Notifier signal:

• void minYValueChanged(float value)

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This property holds the minimum Z value for the generated surface points.

Defaults to 0.0.

When setting this property the corresponding maximum value is adjusted if necessary, to ensure that the range remains valid.

Access functions:

• float minZValue() const

• void setMinZValue(float min)

Notifier signal:

• void minZValueChanged(float value)

Constructs QHeightMapSurfaceDataProxy with the given parent.

Constructs QHeightMapSurfaceDataProxy with the given image and parent. Height map is set by calling setHeightMap() with image.

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Constructs QHeightMapSurfaceDataProxy from the given image filename and parent. Height map is set by calling setHeightMapFile() with filename.

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Destroys QHeightMapSurfaceDataProxy.

Replaces current data with the height map data specified by image.

There are several formats the image can be given in, but if it is not in a directly usable format, a conversion is made.

The height of the image is read from the red component of the pixels if the image is in grayscale, otherwise it is an average calculated from red, green, and blue components of the pixels. Using grayscale images may improve data conversion speed for large images.

Not recommended formats: all mono formats (for example QImage::Format_Mono).

The height map is resolved asynchronously. QSurfaceDataProxy::arrayReset() is emitted when the data has been resolved.

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Replaces current data with height map data from the file specified by filename.

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A convenience function for setting all minimum (minX and minZ) and maximum (maxX and maxZ) values at the same time. The minimum values must be smaller than the corresponding maximum value. Otherwise the values get adjusted so that they are valid.