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[Documents] TIN DL : 0: 用三角网法绘制等值线，是在三角形的三条边上用线性内插方法寻找等值点，这种方法的机理是将每个三角形看作是空间的一个平面，这就要求在每个三角形的三个顶点内的地貌形态无明显的变化，故此希望将其中最靠近的三个点构成三角形，以符合上述机理，使插补的等值点精度较高，更好的反映地貌的实际形态。符合这些条件的三角形称之为“最佳三角形”-With a triangular mesh contour map is the edge of the triangle with the three methods of linear interpolation to find the equivalent point, the mechanism of this method is to each triangle as a space plane, which requires each triangles three vertices with no obvious patterns of geomorphic change, it wished to put the three points closest to constitute a triangle in order to comply with the above mechanism, so that the equivalent interpolation points higher accuracy, better reflects the landscape the actual shape. Applying these criteria to the triangle known as the
Date : 2025-12-29 Size : 22kb User : 赵强
[Documents] 9927406zijide DL : 0: 常见的几何图形（二维图形）都是由点、直线和圆组成，而平面上的点和直线都可用矢量进行表示，如果假设几何图形中不包含圆，那么一个无论多么复杂的几何图形都可用矢量表示并存储，且图形上的几何变换都可通过矢量上的变换得以实现。-A common geometry (two-dimensional graphics) by points, lines and circular form, while the plane of the points and straight lines are available vectors indicated that if the assumed geometry does not contain a round, then one, no matter how complex geometry Vector graphics are available to express and store, and graphics can be passed on the geometric transformation on the vector transformation can be achieved.
Date : 2025-12-29 Size : 7kb User : 徐东