ProblemNxN lattice, stacked with 1x1x1 cubes, grid[i][j] represents the number of cubes stacked on a coordinate grid, and the three-view area is calculated.
Input: [[1,2],[3,4]]Output:17Explanation: See
IdeasFor the top view, as long as a lattice has a value, the area value is added 1.For a front view (facing the x-axis), for an X, the highest grid value in the y-axis direction, which indicates that the x follows the y-axis to see the area values seen in the past.For a side view (f

On a n * n grid, we place some 1 * 1 * 1 cubes is axis-aligned with the X, y, and Z axes.Each value V = grid[i][j] Represents a tower of v cubes placed on top of the grid cell (I, J).Now we view the projection of these cubes onto the XY, YZ, and ZX planes.A projection is a shadow, which maps our 3 dimensional figure to a 2 dimensional plane.Here, we is viewing the "shadow" when looking at the cubes from the top, the front, and the side.Return The total area of all three projections.Example 1:Inp

Haven't written a blog for a long time. In fact, there is nothing to write yourself ... The level is limited, eh .... The robot has recently been engaged in kinematics, so the depth vision is neglected here.
However, recently saw a previous article feel very interesting, so want to take out and share with you.
The title of the article is titled "Sliding Shapes for 3D object detection in Depth Images", whi

to see the 3D projection.All the geometry in 3D development is ultimately made up of a series of triangles. So in the case of your three-dimensional coordinate system HD, you also need to consider splitting your 3D model into triangles. It's tedious to hear, fortunately there are now some helper classes to help you deal with the decomposition of these triangles,

want to see the 3D projection.All the geometry in 3D development is ultimately made up of a series of triangles. So in the case of your three-dimensional coordinate system HD, you also need to consider splitting your 3D model into triangles. It's tedious to hear, fortunately there are now some helper classes to help you deal with the decomposition of these trian

and Createextrusionmodel two build models in the HT for Web Modeling Manual, where Createringmodel, as the name implies, is used to build a ring model around a circle, Createextrusionmodel is used to build a shape-based projection effect, the 3D models generated by these two functions are derived from the plane of 2D graphics, are built on the HT system in the construction of 2D irregular polygons using the Points and segments two array parameters ar

and Createextrusionmodel two build models in the HT for Web Modeling Manual, where Createringmodel, as the name implies, is used to build a ring model around a circle, Createextrusionmodel is used to build a shape-based projection effect, the 3D models generated by these two functions are derived from the plane of 2D graphics, are built on the HT system in the construction of 2D irregular polygons using the Points and segments two array parameters ar

WPF 3D knowledge points and examples, wpf3d knowledge pointsIntroduction
The reason is that a triangle is used to describe the most subtle ry of a plane. The rendering engine can calculate its color based on the material of each triangle and the lighting angle in the scene.
In fact, it is three points to determine a plane. The calculation on a plane is the simplest, with the least factors taken into con

Examples of 3D Rotation Code implemented by CSS3 and css33d rotation code
Examples of 3D Rotation Code implemented by CSS3:This section describes the 3D Rotation effects of CSS3 through code examples. The emergence of css3 allows

, Buffer indices)
Gldrawarrays creates a sequence of geometric entities, using the array elements in each array that start with first, to count–1, and mode is the drawing pattern.
Gldrawelements uses the count elements to define a sequence of entities, type is the data types in the indices array, mode is the drawing mode, and the indices array stores the top
The index value of the point.
Application examples
Use the content explained above to giv

) Translatez (50px); }. Right {-webkit-transform:rotatey (90deg) Translatez (50px); }. Left { -webkit-transform:rotatey ( -90deg) Translatez (50px); }. Bottom {-webkit-transform:rotatex ( -90deg) Translatez (50px); }. Back {-webkit-transform:rotatey ( -180deg) Translatez (50px); }For the display effect, you can adjust the distance of perspective ~Well, the cube understands, then this product display is no difficulty; two div represents two faces, one is a picture,

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