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POfull drawing not displaying on screen pygame
 

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  1. POfull drawing not displaying on screen pygame
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    <p>I have the following python/pygame code:</p> <pre><code>import sys, pygame from array import * pygame.init() height = 600 width = 800 </code></pre> <p>Setup Display Window</p> <pre><code> DISPLAYSURFACE = pygame.display.set_mode((width, height)) pygame.display.set_caption('Graphics Assignment Part 1') </code></pre> <p>open file </p> <pre><code> file = open('F:\\school\\Graphics\\PIXA.DAT', 'r') </code></pre> <p>read file into a list and close it</p> <pre><code> vlist = file.readlines() #close file file.close #remove last value from list del vlist[-1] </code></pre> <p>store values from vlist into points but change J to JUMP bit and split ints with , </p> <pre><code> points = [list(map(int,v.split())) if v.strip().lower() != "j" else "JUMP" for v in vlist] </code></pre> <p>Setup loops to split vlist into 3 lists of x,y,z coordinate lists </p> <pre><code>Xs,Ys,Zs= zip(*points) unique_Xs = [] [unique_Xs.append(val) for val in Xs if val != "J"] unique_Ys = [] [unique_Ys.append(val) for val in Ys if val != "U"] unique_Zs = [] [unique_Zs.append(val) for val in Zs if val != "M"] draw = list(zip(unique_Xs,unique_Ys)) </code></pre> <p>Draw the list of points on the Screen as a series of lines</p> <pre><code> drawing = pygame.draw.lines(DISPLAYSURFACE,(0,255,172),False, draw, 1) </code></pre> <p>Update the Display and quit pygame</p> <pre><code> pygame.display.update() running = True while running: for event in pygame.event.get(): if event.type == pygame.QUIT: running = False </code></pre> <p>I am reading in a list of coordinates and storing them into a list of x,y,z coordinates to draw a set of lines in pygame.</p> <p>I can draw the image however the whole thing does not show up on the screen because the points are in the range of -2000 to 2000.</p> <p>How can i change my coordinate range in my python window to display my whole image in my 800x600 display window</p>
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    1. USuser2840327
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    1. CODraw your lines to a `Surface` that's the right size, and then use [`transform.scale`](http://www.pygame.org/docs/ref/transform.html#pygame.transform.scale) (or `smoothscale`) to map it to the display. Alternatively, scale your coordinates before passing them to `draw.lines`.
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      1. POfull drawing not displaying on screen pygame
      1. USGareth Rees
    2. COFormula to convert range to a different range: http://stackoverflow.com/questions/4229662/convert-numbers-within-a-range-to-numbers-within-another-range?lq=1
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      1. POfull drawing not displaying on screen pygame
      1. USninMonkey
    3. COpossible duplicate of [Convert a number range to another range, maintaining ratio](http://stackoverflow.com/questions/929103/convert-a-number-range-to-another-range-maintaining-ratio)
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      1. POfull drawing not displaying on screen pygame
      1. USsloth
 

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