points

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Find bezier control-points for curve passing through N points

Considering the following nice solution for finding cubic Bézier control points for a curve passing through 4 points:[详细]

2023-04-12 13:47 分类：问答
How to optimize interpolation of large set of scattered points?

I am currently working with a set of coordinate points (longitude, latitude, about 60000 of them) and the temperature at that location. I need to do a interpolation on them to compute the values at so[详细]

2023-04-12 10:58 分类：问答
need to write compare point method in my class called point . ruby

hi i have wrttien this points class in ruby but i need a compare method class to anybody a开发者_开发知识库ny ideas where to start?[详细]

2023-04-10 11:36 分类：问答
Python, GIS and Fortran: Trying to create multiple polygons from xy point data

I\'ve been working on this problem for awhile and have found no joy on the ESRI forum page or with some FORTRAN triangulation script I wrote.[详细]

2023-04-06 14:52 分类：问答
Openlayer adding points in Openlayer draw feature

I am trying to use draw feature of openlayer (polygon). It is possible for the end user to draw a polygon. But I w开发者_运维问答ant to draw the polygon through java script. I am trying to use insertX[详细]

2023-04-04 10:06 分类：问答
facebook application invite incentive

I\'m trying to make a facebook game that allows users to invite friends. I\'d like to provide an incentive that people who invite others get 1 bonus point for every 10 points that their invitee gets.[详细]

2023-04-02 19:48 分类：问答
determine if a region of space is empty

I have a region of space, 2 dimensions, from (0,0) to (MAX_X, MAX_Y). Inside this region of space, I draw some lines, they intersect the perimeter of the region and they may intersect one another. In[详细]

2023-03-27 10:21 分类：问答
2D nearest neighbour search for moving points

I want do do some flocking simulation, as described here. For this I need to search for the nearest neighbours of each of my 2D points. However, I cannot use a static data structure like a k-d tree 开[详细]

2023-03-26 16:06 分类：问答
How to build a grid from scattered points in OpenCV?

What I need is to construct a intensity grid(image) in OpenCV from which I can extract some contours. I have already resolved this issue with a complete data grid, but my problem is that I will only h[详细]

2023-03-23 00:13 分类：问答
Drawing a curve through a set of N points, where N>2

I开发者_开发知识库 need to draw a curve smoothly through N points with N>2 with Javascript. I am currently using the bezierCurveTo() within an html5 canvas object. I\'ve invested a good deal of time i[详细]

2023-03-22 14:31 分类：问答