glTranslatef(); glScaled(); glRotatef); 参数意思glTranslatef(0.0f,-20.0f,-40.0f);glScaled(10.0f,10.0f,10.0f);glRotatef(-80.0f,10.0f,1.0f,0.0f);只知道有坐标值我还是不明白那个glRotatef的,按二楼的说法,那个方向向量怎么
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 23:01:30
![glTranslatef(); glScaled(); glRotatef); 参数意思glTranslatef(0.0f,-20.0f,-40.0f);glScaled(10.0f,10.0f,10.0f);glRotatef(-80.0f,10.0f,1.0f,0.0f);只知道有坐标值我还是不明白那个glRotatef的,按二楼的说法,那个方向向量怎么](/uploads/image/z/13958212-4-2.jpg?t=glTranslatef%28%29%3B+glScaled%28%29%3B+glRotatef%29%3B+%E5%8F%82%E6%95%B0%E6%84%8F%E6%80%9DglTranslatef%280.0f%2C-20.0f%2C-40.0f%29%3BglScaled%2810.0f%2C10.0f%2C10.0f%29%3BglRotatef%28-80.0f%2C10.0f%2C1.0f%2C0.0f%29%3B%E5%8F%AA%E7%9F%A5%E9%81%93%E6%9C%89%E5%9D%90%E6%A0%87%E5%80%BC%E6%88%91%E8%BF%98%E6%98%AF%E4%B8%8D%E6%98%8E%E7%99%BD%E9%82%A3%E4%B8%AAglRotatef%E7%9A%84%2C%E6%8C%89%E4%BA%8C%E6%A5%BC%E7%9A%84%E8%AF%B4%E6%B3%95%2C%E9%82%A3%E4%B8%AA%E6%96%B9%E5%90%91%E5%90%91%E9%87%8F%E6%80%8E%E4%B9%88)
glTranslatef(); glScaled(); glRotatef); 参数意思glTranslatef(0.0f,-20.0f,-40.0f);glScaled(10.0f,10.0f,10.0f);glRotatef(-80.0f,10.0f,1.0f,0.0f);只知道有坐标值我还是不明白那个glRotatef的,按二楼的说法,那个方向向量怎么
glTranslatef(); glScaled(); glRotatef); 参数意思
glTranslatef(0.0f,-20.0f,-40.0f);
glScaled(10.0f,10.0f,10.0f);
glRotatef(-80.0f,10.0f,1.0f,0.0f);
只知道有坐标值
我还是不明白那个glRotatef的,按二楼的说法,那个方向向量怎么算啊,它只是一个点而已,难道是另一个是原点吗?它是按什么坐标啊,它的基准坐标在哪?还有英文我看着很吃力啊?没有中文版的吗
glTranslatef(); glScaled(); glRotatef); 参数意思glTranslatef(0.0f,-20.0f,-40.0f);glScaled(10.0f,10.0f,10.0f);glRotatef(-80.0f,10.0f,1.0f,0.0f);只知道有坐标值我还是不明白那个glRotatef的,按二楼的说法,那个方向向量怎么
这几个函数是OpenGL图形开发包自带的函数.
glTranslatef(0.0f,-20.0f,-40.0f)表示将当前图形向x轴平移0,向y轴平移-20,向z轴平移-40
glScaled(10.0f,10.0f,10.0f)表示将当前图形沿x,y,z轴分别放大为原来的10倍
glRotatef(-80.0f,10.0f,1.0f,0.0f)表示将当前图形沿方向向量(-10,1,0)顺时针旋转80度.
更具体的帮助及其它相关函数的帮助可以去官方网站www.opengl.org上寻找