point
Points, Pixels and Coordinate System in Cocoa Touch
I\'m currently developing an iPhone application. While dra开发者_如何学Gowing, I sometimes use coordinates like 35.5|23.5. I know that points aren\'t the same as pixels. However aren\'t these coordina[详细]
2023-03-29 09:07 分类:问答How to determine if a latitude & longitude is within an ellipse
I have data describing a rotated ellipse (the center of the ellipse in latitude longitude coordinates, the lengths of the major and minor axes in kilometers, and the angle that the ellipse is oriented[详细]
2023-03-28 18:44 分类:问答Find if point lies on line segment
I have line segment defined b开发者_如何转开发y these two points: A(x1,y1,z1) and B(x2,y2,z2). I have point p(x,y,z). How can I check if the point lies on the line segment?Find the distance of point P[详细]
2023-03-28 09:19 分类:问答C# convert an ArrayList of type ints into a Point[]
First of all I am running this on a Mobile Device using CE6.5.I have an ArrayList of data that are ints and for graphing purposes I want to convert in order the number it is into the list and the int[详细]
2023-03-28 02:17 分类:问答converting points on map to polygons
We have thousands of points on a map. The points are measurements that are taking periodicallyas a person moves around, so the position of each point is random within a window, but when you look at th[详细]
2023-03-25 07:11 分类:问答How can I get the "front" of a parallelogram given 4 points and an angle
This should be a simple matter, but for some reason I can\'t grasp it. I have a parallelogram, defined as four points (in anti-clockwise order, but apart from that I do not know which corner is which[详细]
2023-03-25 02:11 分类:问答How To Change Applet Color
I need some help with this program I have to create for Uni. The problem is that the setColor and getColor methods do no work, and the line doesn\'t change color when I want it too.[详细]
2023-03-25 00:40 分类:问答google maps API v3 put draggable maker
this my code, function initialize() { if (GBrowserIsCompatible()) { var city = \'battaramulla\'; var c开发者_StackOverflowenter = \'\';[详细]
2023-03-21 07:35 分类:问答c# - problem with finding a point (2D)
I am working with C# and I have 3 System.Drawing.Point variables (A, B, C) and the angle of alpha. I need to find any point on the side \'a\' and don\'t 开发者_开发问答know how to manage this.[详细]
2023-03-20 17:42 分类:问答Copy constructor for point
Is this copy constructor correct? class GPSPoint { private: double lat, lon, h; char *label; public: GPSPoint (const GPSPoint &p)[详细]
2023-03-20 07:28 分类:问答