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src
core
pointcloud
qgspointcloudattributebyramprenderer.h
Go to the documentation of this file.
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/***************************************************************************
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qgspointcloudattributebyramprenderer.h
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--------------------
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begin : October 2020
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copyright : (C) 2020 by Nyall Dawson
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email : nyall dot dawson at gmail dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSPOINTCLOUDATTRIBUTEBYRAMPRENDERER_H
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#define QGSPOINTCLOUDATTRIBUTEBYRAMPRENDERER_H
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#include "
qgspointcloudrenderer.h
"
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#include "qgis_core.h"
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#include "
qgis_sip.h
"
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#include "
qgscolorrampshader.h
"
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#ifndef SIP_RUN
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class
CORE_EXPORT
QgsPointCloudAttributeByRampRendererPreparedData
:
public
QgsPreparedPointCloudRendererData
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{
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public
:
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QSet< QString >
usedAttributes
()
const override
;
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bool
prepareBlock
(
const
QgsPointCloudBlock
*block )
override
;
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QColor
pointColor
(
const
QgsPointCloudBlock
*block,
int
i,
double
z )
override
SIP_SKIP
;
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QString
attributeName
;
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QgsColorRampShader
colorRampShader
;
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int
attributeOffset = 0;
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bool
attributeIsX =
false
;
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bool
attributeIsY =
false
;
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bool
attributeIsZ =
false
;
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QgsPointCloudAttribute::DataType
attributeType
;
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};
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#endif
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class
CORE_EXPORT
QgsPointCloudAttributeByRampRenderer
:
public
QgsPointCloudRenderer
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{
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public
:
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QgsPointCloudAttributeByRampRenderer
();
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QString type()
const override
;
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QgsPointCloudRenderer
*clone()
const override
;
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void
renderBlock(
const
QgsPointCloudBlock
*block,
QgsPointCloudRenderContext
&context )
override
;
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QDomElement save( QDomDocument &doc,
const
QgsReadWriteContext
&context )
const override
;
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QSet< QString >
usedAttributes
(
const
QgsPointCloudRenderContext
&context )
const override
;
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QList<QgsLayerTreeModelLegendNode *> createLegendNodes(
QgsLayerTreeLayer
*nodeLayer )
override
SIP_FACTORY
;
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std::unique_ptr< QgsPreparedPointCloudRendererData > prepare()
override
SIP_SKIP
;
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static
QgsPointCloudRenderer
*create( QDomElement &element,
const
QgsReadWriteContext
&context )
SIP_FACTORY
;
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QString attribute()
const
;
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void
setAttribute(
const
QString &attribute );
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QgsColorRampShader
colorRampShader()
const
;
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void
setColorRampShader(
const
QgsColorRampShader
&shader );
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double
minimum()
const
;
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void
setMinimum(
double
minimum );
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double
maximum()
const
;
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void
setMaximum(
double
maximum );
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private
:
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double
mMin = 0;
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double
mMax = 100;
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QString mAttribute = QStringLiteral(
"Intensity"
);
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QgsColorRampShader
mColorRampShader;
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};
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#endif
// QGSPOINTCLOUDATTRIBUTEBYRAMPRENDERER_H
QgsColorRampShader
A ramp shader will color a raster pixel based on a list of values ranges in a ramp.
Definition
qgscolorrampshader.h:44
QgsLayerTreeLayer
Layer tree node points to a map layer.
Definition
qgslayertreelayer.h:43
QgsPointCloudAttributeByRampRendererPreparedData
Prepared data container for QgsPointCloudAttributeByRampRenderer.
Definition
qgspointcloudattributebyramprenderer.h:37
QgsPointCloudAttributeByRampRendererPreparedData::attributeName
QString attributeName
Definition
qgspointcloudattributebyramprenderer.h:44
QgsPointCloudAttributeByRampRendererPreparedData::colorRampShader
QgsColorRampShader colorRampShader
Definition
qgspointcloudattributebyramprenderer.h:45
QgsPointCloudAttributeByRampRendererPreparedData::attributeType
QgsPointCloudAttribute::DataType attributeType
Definition
qgspointcloudattributebyramprenderer.h:50
QgsPointCloudAttributeByRampRenderer
An RGB renderer for 2d visualisation of point clouds using embedded red, green and blue attributes.
Definition
qgspointcloudattributebyramprenderer.h:62
QgsPointCloudAttribute::DataType
DataType
Systems of unit measurement.
Definition
qgspointcloudattribute.h:45
QgsPointCloudBlock
Base class for storing raw data from point cloud nodes.
Definition
qgspointcloudblock.h:39
QgsPointCloudRenderContext
Encapsulates the render context for a 2D point cloud rendering operation.
Definition
qgspointcloudrenderer.h:43
QgsPointCloudRenderer
Abstract base class for 2d point cloud renderers.
Definition
qgspointcloudrenderer.h:321
QgsPreparedPointCloudRendererData
Base class for 2d point cloud renderer prepared data containers.
Definition
qgspointcloudrenderer.h:281
QgsPreparedPointCloudRendererData::pointColor
virtual QColor pointColor(const QgsPointCloudBlock *block, int i, double z)=0
An optimised method of retrieving the color of a point from a point cloud block.
QgsPreparedPointCloudRendererData::prepareBlock
virtual bool prepareBlock(const QgsPointCloudBlock *block)=0
Prepares the renderer for using the specified block.
QgsPreparedPointCloudRendererData::usedAttributes
virtual QSet< QString > usedAttributes() const =0
Returns the set of attributes used by the prepared point cloud renderer.
QgsReadWriteContext
The class is used as a container of context for various read/write operations on other objects.
Definition
qgsreadwritecontext.h:34
qgis_sip.h
SIP_SKIP
#define SIP_SKIP
Definition
qgis_sip.h:126
SIP_FACTORY
#define SIP_FACTORY
Definition
qgis_sip.h:76
qgscolorrampshader.h
qgspointcloudrenderer.h
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