前言

实现cnc导入显示和基本动作调试，具体模块可以尝试获取程序后自己做参考

一、演示效果

二、关键程序

部分程序代码参考如下，这里不一一列举了

//#define sNan qQNaN();#include "shaderdrawable.h"#ifdef GLES
#include <GLES/gl.h>
#endifShaderDrawable::ShaderDrawable()
{m_needsUpdateGeometry = true;m_visible = true;m_lineWidth = 1.0;m_pointSize = 1.0;m_texture = NULL;
}ShaderDrawable::~ShaderDrawable()
{if (!m_vao.isCreated()) m_vao.destroy();if (!m_vbo.isCreated()) m_vbo.destroy();
}void ShaderDrawable::init()
{// Init openGL functionsinitializeOpenGLFunctions();// Create buffersm_vao.create();m_vbo.create();
}void ShaderDrawable::update()
{m_needsUpdateGeometry = true;
}void ShaderDrawable::updateGeometry(QOpenGLShaderProgram *shaderProgram)
{// Init in contextif (!m_vbo.isCreated()) init();if (m_vao.isCreated()) {// Prepare vaom_vao.bind();}// Prepare vbom_vbo.bind();// Update vertex bufferif (updateData()) {// Fill vertices bufferQVector<VertexData> vertexData(m_triangles);vertexData += m_lines;vertexData += m_points;m_vbo.allocate(vertexData.constData(), vertexData.count() * sizeof(VertexData));} else {m_vbo.release();        if (m_vao.isCreated()) m_vao.release();m_needsUpdateGeometry = false;return;}if (m_vao.isCreated()) {// Offset for positionquintptr offset = 0;// Tell OpenGL programmable pipeline how to locate vertex position dataint vertexLocation = shaderProgram->attributeLocation("a_position");shaderProgram->enableAttributeArray(vertexLocation);shaderProgram->setAttributeBuffer(vertexLocation, GL_FLOAT, offset, 3, sizeof(VertexData));// Offset for coloroffset = sizeof(QVector3D);// Tell OpenGL programmable pipeline how to locate vertex color dataint color = shaderProgram->attributeLocation("a_color");shaderProgram->enableAttributeArray(color);shaderProgram->setAttributeBuffer(color, GL_FLOAT, offset, 3, sizeof(VertexData));// Offset for line start pointoffset += sizeof(QVector3D);// Tell OpenGL programmable pipeline how to locate vertex line start pointint start = shaderProgram->attributeLocation("a_start");shaderProgram->enableAttributeArray(start);shaderProgram->setAttributeBuffer(start, GL_FLOAT, offset, 3, sizeof(VertexData));m_vao.release();}m_vbo.release();m_needsUpdateGeometry = false;
}bool ShaderDrawable::updateData()
{// Test datam_lines = {{QVector3D(0, 0, 0), QVector3D(1, 0, 0), QVector3D(sNan, 0, 0)},{QVector3D(10, 0, 0), QVector3D(1, 0, 0), QVector3D(sNan, 0, 0)},{QVector3D(0, 0, 0), QVector3D(0, 1, 0), QVector3D(sNan, 0, 0)},{QVector3D(0, 10, 0), QVector3D(0, 1, 0), QVector3D(sNan, 0, 0)},{QVector3D(0, 0, 0), QVector3D(0, 0, 1), QVector3D(sNan, 0, 0)},{QVector3D(0, 0, 10), QVector3D(0, 0, 1), QVector3D(sNan, 0, 0)}};return true;
}bool ShaderDrawable::needsUpdateGeometry() const
{return m_needsUpdateGeometry;
}void ShaderDrawable::draw(QOpenGLShaderProgram *shaderProgram)
{if (!m_visible) return;if (m_vao.isCreated()) {// Prepare vaom_vao.bind();} else {// Prepare vbom_vbo.bind();// Offset for positionquintptr offset = 0;// Tell OpenGL programmable pipeline how to locate vertex position dataint vertexLocation = shaderProgram->attributeLocation("a_position");shaderProgram->enableAttributeArray(vertexLocation);shaderProgram->setAttributeBuffer(vertexLocation, GL_FLOAT, offset, 3, sizeof(VertexData));// Offset for coloroffset = sizeof(QVector3D);// Tell OpenGL programmable pipeline how to locate vertex color dataint color = shaderProgram->attributeLocation("a_color");shaderProgram->enableAttributeArray(color);shaderProgram->setAttributeBuffer(color, GL_FLOAT, offset, 3, sizeof(VertexData));// Offset for line start pointoffset += sizeof(QVector3D);// Tell OpenGL programmable pipeline how to locate vertex line start pointint start = shaderProgram->attributeLocation("a_start");shaderProgram->enableAttributeArray(start);shaderProgram->setAttributeBuffer(start, GL_FLOAT, offset, 3, sizeof(VertexData));}if (!m_triangles.isEmpty()) {if (m_texture) {m_texture->bind();shaderProgram->setUniformValue("texture", 0);}glDrawArrays(GL_TRIANGLES, 0, m_triangles.count());}if (!m_lines.isEmpty()) {glLineWidth(m_lineWidth);glDrawArrays(GL_LINES, m_triangles.count(), m_lines.count());}if (!m_points.isEmpty()) {glDrawArrays(GL_POINTS, m_triangles.count() + m_lines.count(), m_points.count());}if (m_vao.isCreated()) m_vao.release(); else m_vbo.release();
}QVector3D ShaderDrawable::getSizes()
{return QVector3D(0, 0, 0);
}QVector3D ShaderDrawable::getMinimumExtremes()
{return QVector3D(0, 0, 0);
}QVector3D ShaderDrawable::getMaximumExtremes()
{return QVector3D(0, 0, 0);
}int ShaderDrawable::getVertexCount()
{return m_lines.count() + m_points.count() + m_triangles.count();
}double ShaderDrawable::lineWidth() const
{return m_lineWidth;
}void ShaderDrawable::setLineWidth(double lineWidth)
{m_lineWidth = lineWidth;
}bool ShaderDrawable::visible() const
{return m_visible;
}void ShaderDrawable::setVisible(bool visible)
{m_visible = visible;
}double ShaderDrawable::pointSize() const
{return m_pointSize;
}void ShaderDrawable::setPointSize(double pointSize)
{m_pointSize = pointSize;
}

三、程序链接

https://download.csdn.net/download/u013083044/86784801

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QT-简单的CNC控制面板

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前言

一、演示效果

二、关键程序

三、程序链接

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