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<1234567…34>
  • Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …

    ... of the Spectrum ROM for DRAW-LINE at $24B7 is disappointingly ... detail given for CIRCLE and DRAW ARC).

    The Z88 source ... ?) line.

    [CODE];now draw the line
    ;Bresenham line ... ,writefinish ;finished if trying to draw 0,0!

    ...
    Jimmy Jimmy August 2008 Development
  • Graphical Amusementsstefano (another z88dk bod) has been working on something interesting: run them with the usual LOAD "" [url]http://stefanob.webs.com/rabbit.tap[/ur…

    ... the converter, not by the draw routines though I suppose this ... ). svg has things like draw bezier and draw arc but the converter substitutes ...
    Alcoholics Anonymous Alcoholics Anonymous November 2009 Development
  • Draw (x1,y1) to (x2, y2)?I was never very good at math. :( Given the above variables, what should I do to draw a line between the two pixels? How do I calculate the values fo…

    ... at math. :( Given the above variables, what should I do to draw ... I calculate the values for DRAW?

    I thought it ... />
    PLOT x1,y1
    DRAW ????.????

    I've seen ...
    zxbruno zxbruno May 2009 Sinclair Basic
  • DRAW x,y,a Algorithm - how does the ROM do it?Hi all, Getting on with SpecOS, and one of the things I would love to do is to preserve the original ROM's behaviour when drawing Arcs. This is don…

    ... . This is done by using DRAW x,y,a where the ... of the DRAW command implemented in BASIC - but not the arc drawing ... , or Pascal!) implementation of the Arc drawing algorithm implemented by the ... be clear, I can already draw bezier curves (and therefore, so ...
    Dunny Dunny August 2010 Sinclair Basic
  • The WoS Type-Ins ProjectGood folks of WoS! Lend me your ears (figuratively speaking of course)! At long last, the kind and noble Martijn has cleared the Type-Ins project for…

    ... Tool
    Arc Regular Arcade game
    Arc/Adv Arcade Adventure ... br /> Dbase Utility: Database
    Draw Utility: Drawing
    Elec Utility ... /> Font Utility: Font/UDGs
    Math Utility: Mathematics
    Mus Utility ...
    Arjun Arjun October 2003 Sinclair Miscellaneous
  • Complex DRAW command?After looking at some Speccy code I noticed that the DRAW statement is used to draw lines (or it looked that way). On the Coco, the LINE command was…

    ... noticed that the DRAW statement is used to draw lines (or it ... command was used to draw lines and the DRAW statement was completely ... position isn't updated after draw)
    B = blank (move but ... don't draw)

    "U8R8D8L8" would draw a square 8 ...
    JamesD JamesD February 2007 Development
  • Your views on...The Arc of Yesod[url=http://www.worldofspectrum.org/infoseek.cgi?regexp=^Arc+of+Yesod%2c+The$&pub=^Thor+Computer+Software$&loadpics=on]The Arc of Yesod[/url] OK! Th…

    ... .worldofspectrum.org/infoseek.cgi?regexp=^Arc+of+Yesod%2c+The$& ... +Software$&loadpics=on]The Arc of Yesod[/url]

    CUCHULAINN CUCHULAINN April 2007 Games
  • Bresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM. It only uses integer math and runs very fast and is very compact. It is…

    ... .
    It only uses integer math and runs very fast and ... ) it calculates

    ;we draw a pixel in each of ...
    rtunes rtunes September 2008 Development
  • Cobra's ArcMartijn, the game Cobra's Arc by Dinamic is also called Cobras Arc (without the '), If you take a look at the front and back cover. cheers! ;)

    Martijn, the game Cobra's Arc by Dinamic is also called Cobras Arc (without the '), If you take a look at the front and back cover.

    cheers! ;)
    Ivanzx Ivanzx February 2009 Infoseek database
  • Name Me, Make me (involves Boolean math).[B]What's the name of this game?[/B] There are 2 players. You have 4 rows of toothpicks. 16 toothpicks total. 1st row has 1 toothpick, 2nd row h…

    ... />
    I remember that Boolean math helps with solving it for ...
    ZnorXman ZnorXman May 2009 New game ideas
  • wanna draw zx graphics :)Is anybody looking for a zx graphics ? I would like to help with graphics if there are projects that need it. Here is an example of a sprite (may be …

    ... big for a sprite) i draw today just for test :)))
    beZz beZz August 2009 Development
  • Oooh! Good draw!England has come up trumps with the World Cup 2010 draw. We're in group C, playing against USA, Slovenia and Algeria. I think it's pretty safe to say…

    England has come up trumps with the World Cup 2010 draw. We're in group C, playing against USA, Slovenia and Algeria. I think it's pretty safe to say that we won't be knocked out of the 1st round :D
    The Starglider The Starglider December 2009 Chit chat
  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…

    ... related to the draw rom subroutine. The Line-Draw require two sets ... show a working example to draw a line in asm ? because ...
    arfgh arfgh June 2010 Sinclair Basic
  • A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…

    ... CODE]
    ; ---------------------------------------------------------------------
    ; DRAW using Bresenham's algorithm and ... ; ---------------------------------------------------------------------

    ;; DRAW PROCEDURE
    PROC
    < ...
    boriel boriel December 2010 Development
  • Drawing 3D grids in Basic...This is probably very simple for someone who feels comfortable with Math, but it's driving me crazy... Let's say I want to draw a grid of 16 by 16 s…

    ... someone who feels comfortable with Math, but it's driving me ... 's say I want to draw a grid of 16 by ... 15.93 : PLOT b,0 : DRAW t-b,88 : LET t ... X so that I can draw the 16 horizontal lines? How ...
    zxbruno zxbruno March 2011 Sinclair Basic
  • Oceans 'Melbourne Draw+' utility and MOREWas this preserved? I thought I had all my microdrives from Ocean salvaged but I don't seem to remember this being put on WOS? It's Melbourne Draw bu…

    ... on WOS? It's Melbourne Draw but with stuff bolted on ...
    Mark R. Jones Mark R. Jones October 2011 Sinclair Miscellaneous
  • Reflex Arc or Refex Arc?According to the cassette inlay from "That?s the Spirit", the development group should be called Refex Arc and not Reflex Arc, as stated on the entry…

    ... should be called Refex Arc and not Reflex Arc, as stated on ...
    Ivanzx Ivanzx March 2012 Infoseek database
  • Not MIA but DD: Arc of YesodArc of Yesod on eBay, no bids yet, 55mins remaining. Blatant ad by me. It's not missing in action, but it is Distribution Denied for anyone interest…

    Arc of Yesod on eBay, no bids yet, 55mins remaining. Blatant ad by me.

    It's not missing in action, but it is Distribution Denied for anyone interested.
    steveinuk steveinuk April 2012 Sales
  • ZX-Paintbrush 2.2.9.5Dear ZX-Paintbrush friends, I want to present you some preview pictures of my latest progresses. Well, there are some bug-fixes to do, but it's work…

    ... . There are some new figures - arc tool:
    [IMG]http://www ... [/IMG]

    Orthogonal line - draw one line and one point ... [/IMG]

    Parallel lines - draw one line and one point ... (with 4 points - as the arc tool):
    [IMG]http://www ...
    clausjahn clausjahn November 2012 Emulators
  • Can anyone draw pixels?I'm not sure where is best to post this request, but I would like to know if anyone out there would like to draw some Speccy graphics for me. It's no…

    ... out there would like to draw some Speccy graphics for me ...
    Shaun.Bebbington Shaun.Bebbington January 2013 Sinclair Miscellaneous
  • melbourne drawIt could be said I am easly pleased,:grin: Very nice peice of software. I was realy impressed by its ease of use. I think a lot of time and effort w…

    ... if i realy want to draw fancy shapes I can just ... the hobbit graphics to melborne draw. any ideas?

    Side ...
    wibble wibble August 2013 Development
  • draw single pixel in the borderI have problems with drawing in the border. I can get it to draw a line ,but it always becomes a line and not a single pixel. <br><br>rept 3580 <br…

    ... . I can get it to draw a line ,but it always ...
    micken micken May 2015 Development
  • Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…

    ... a liberally licensed fixed point math lib for z80 somewhere? When ... ://z80-heaven.wikidot.com/advanced-math#toc4 which lists a bunch ...
    Sol_HSA Sol_HSA November 2015 Development
  • Euro 2016 Draw AKA The 'England Are Gonna Win' ThreadNow I know it's currently the 'in thing' to think the England footie team are overrated, overpaid, uninterested twonks, but thought I'd start a threa…

    ... start a thread as the draw is at 5.30pm (GMT ...
    Maroc's Other Projection Maroc's Other Projection December 2015 Chit chat
  • How to draw a picture on ZX Spectrum Basic?How can i draw a picture on ZX Spectrum like this?? http://www.worldofspectrum.org/infoseekid.cgi?id=0026662

    How can i draw a picture on ZX Spectrum like this?? http://www.worldofspectrum.org/infoseekid.cgi?id=0026662
    DerekAutista DerekAutista December 2016 Games
<1234567…34>

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Related Threads

  • Reflex Arc or Refex Arc?According to the cassette inlay from "That?s the Spirit", the development group should be called Refex Arc and not Reflex Arc, as stated on the entry…
  • No speech in Cobra's Arc? A mystery tale from Spain...I once downloaded CsA - probably from some Spanish retrogaming website - in TAP format. While I usually discard TAP files in favor of TZX ones as soo…
  • Complex DRAW command?After looking at some Speccy code I noticed that the DRAW statement is used to draw lines (or it looked that way).<br /> <br /> On the Coco, the LINE…
  • Your views on...The Arc of Yesod[url=http://www.worldofspectrum.org/infoseek.cgi?regexp=^Arc+of+Yesod%2c+The$&amp;pub=^Thor+Computer+Software$&amp;loadpics=on]The Arc of Yesod[/url]…
  • Fastest way to decide which pixel to paint in order to draw a straight line(after I saw "Bresenhams circle algorithm" in development forum, I decided to ask this in here)<br /> <br /> in fact, I want to accelerate a car towa…
  • Cobra's ArcMartijn, the game Cobra's Arc by Dinamic is also called Cobras Arc (without the '), If you take a look at the front and back cover.<br /> <br /> chee…
  • Draw (x1,y1) to (x2, y2)?I was never very good at math. :( Given the above variables, what should I do to draw a line between the two pixels? How do I calculate the values fo…
  • Name Me, Make me (involves Boolean math).[B]What's the name of this game?[/B]<br /> <br /> There are 2 players.<br /> You have 4 rows of toothpicks. 16 toothpicks total. <br /> <br /> 1st …
  • wanna draw zx graphics :)Is anybody looking for a zx graphics ? I would like to help with graphics if there are projects that need it. Here is an example of a sprite (may be …

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