I found some problem in creating dynamic 2d array with arraylist,The original code is tediously long to read so i am giving a simple code here,the problem is same in both the cases: import java.util.*; class test{ public static void main(String args[]){ Integer test[]=new Integer[3]; ArrayList<Integer[]> al=new ArrayList<Inte...
This is more of an offbeat question I guess but I am curious as to what graphic designers do to make flat images like in Paper Mario, Limbo or Shank so sharp. The extent of my knowledge goes into an intermediate level of Maya and some sprite creation in photoshop but I never understood the process through which they create such visuals. ...
Hi guys, Well, here's my request. I don't know OpenGL already, and I'm not willing to learn it, I want to learn OpenGL ES directly since I'm targeting my development to android, however. I want to learn openGL ES in order to develop my 2D games, I choosed that for performances purpose (since basic SurfaceView drawing isn't that efficien...
So what I'm looking for is a table view that supports and displays an array of cells (think excel). The 2D implementation should have cell caching for performance, optimized for panning. ...
I am having trouble with my 2D rotation implementation. I'm trying to create a pan feature for a map (move your mouse up; it should move the map down.) The map is just a 2d background image that is able to be rotated, etc. The problem is when it's in a rotated state moving my mouse up will continue to move the mouse in direction as if...
Hi guys :) I am trying to implement full text search using Quartz 2D but it's a nightmare. I can "extract" text from pdf page using PDF Operator (TJ and other...) CGPDFOperatorTableRef myTable; myTable = CGPDFOperatorTableCreate(); CGPDFOperatorTableSetCallback (myTable, "BT", &op_BT); CGPDFOperatorTableSetCallback (myTable, "Td",...
How can I test whether a line has a point that lies within (not on the edge of) a triangle. (All in 2D). Currently I'm thinking I'll do this: Define the line, and each side of the triangle as Ax+By+C=0, and have an xrange. Check if the line intersects any of the lines of the triangle. If it does, check that this is NOT at the end of t...
I am building a 2D game with Android SurfaceView. When I touch the screen the game animation runs slowly. Why, and how can I avoid this? The touch events are stubs just like onTouchEvents(MotionEvents ev){ empty };. All of the game logic and graphics draw code are in run() in an extends Thread class. ...
standard scaling using the center of an image as the pivot point and is uniform in all dimensions. I'd like to figure out a way to scale an image from an arbitrary pivot point such that points closer to the pivot point scale less than points away from that point. ...
in my previous code, I changed the coordinate system in my view's drawRect, so that the rectangle had 0,0 in the centre, 0,1 at the top centre and 1,0 in the centre of the right edge. I.e. a normalised Cartesian system. { // SCALE so that we range from TL(0, 0) - BR(2, -2) CGContextScaleCTM (X, 0.5 * bitmapSize.width, -...
I'm having trouble wrapping my head around how these work. First, in a 2d game the projection matrix should be set up as ortho with left, right, top, bottom matching the window, right? But when the window resizes, should I just change glViewport, not the projection matrix? And how do I keep the aspect ratio? Could someone explain the pu...
Hi Folks, I'm stuck with sorting 2D arrays in objective c. I have a 2D array which I made from two string arrays. NSArray *totalRatings = [NSArray arrayWithObjects:namesArray,ratingsArray,nil]; I've pulled the values using: for (int i=0; i<2; i++) { for (int j=0; j<5; j++) { NSString *strings = [[totalRatings objectAtIndex:i] ...
Hi guys, another question regarding pdf parsing... Just read PDF Reference version 1.7 "5.3.1 Text-Positioning Operators" and I am a little bit confused. I wrote some code to get transformation matrix and initial text position. CGPDFOperatorTableSetCallback (table, "MP", &op_MP);//Define marked-content point CGPDFOperatorTa...
Is it WPF? WFA? A custom template? I currently use WFA, and it just doesn't seem anywhere near optimal. And no, I'm not asking for a referral to DirectX, or another language. Thanks. ...
need to locate a postcode driven address labelling software that print a 2d barcode label containing all the address details. Can anybody point me in the right direction? JT ...
Background: I have 8 images for every sprite in my bird's view JavaScript game, representing top, top-right, right, right-bottom etc., depending on the player's space ship speed. Question: Given the values sprite.speed.x and sprite.speed.y (which could be something like 4 and -2.5, or 2 and 0 for instance), how do I get the correct angl...
I have a poly-line-contour consisting of line segments and arcs of circles which i want to extrude to prisms. As my extrusion functions only support straight-edge polygons, i need to approximate the arcs using line segments. The arcs are defined through a starting point, center point and sweep angle (CCW). The sweep-angles i need to d...
Say you have a 2D area and you want to generate random points within it, by setting x = random() * width y = random() * height do the points clump around the centre of the area? I remember reading something saying they would, but I can't quite figure out why, and how to prevent it. ...
Hi R experts! I have a cloud of points scattered in a 2D Euclidean space. I would like to calculate the area inside the polygon linking the most extreme (=peripheral) points of the cloud. In other words, I would like to estimate the area covered by the cloud in this space. Is there a formula in R? Thanks a lot for any response Julien ...
Hello and Welcome I am trying to make a 2-D tile system heavily based off of the Snake example. The original mTileGrid is still there, but there is a new array: mMapGrid. The point is to copy the data from mMapGrid to mTileGrid on each update cycle and therefore simulate an area larger than the immediate screen. I wrote more functions...