algiuxas Posted September 14, 2015 Posted September 14, 2015 (edited) Hello, I'm weak at mathematic, I need help, I need to find blue point, I know only red points positions, and arc degree: ArcAutoIt3ForumsHelp.bmpThank you very much! ArcAutoIt3ForumsHelp.bmp Edited September 14, 2015 by algiuxas After switching years ago to Linux, sadly I don't use AutoIt anymore.
jchd Posted September 14, 2015 Posted September 14, 2015 The angle in the picture doesn't ressemble anyway a 270° angle (a 3/4 of full rotation). If it really is 270°, no computation is needed: the blue point will be at (-90, 5). This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)
algiuxas Posted September 14, 2015 Author Posted September 14, 2015 The angle in the picture doesn't ressemble anyway a 270° angle (a 3/4 of full rotation). If it really is 270°, no computation is needed: the blue point will be at (-90, 5).Thanks, but it's just an example, I need to know how to calculate it, becouse arc degree will change in my program. After switching years ago to Linux, sadly I don't use AutoIt anymore.
jchd Posted September 14, 2015 Posted September 14, 2015 Like this:#include <Array.au3> Local $aCoord = [5, 90] Local $Angle = 270 ; in degrees, anti-clockwise Local $aNewCoord = _Rotate($aCoord, $Angle) _ArrayDisplay($aNewCoord) Func _Rotate($aXY, $deg) Local $rad = 2 * 3.141592653589793238 * $deg / 360 Local $aNewXY = [$aXY[0] * Cos($rad) - $aXY[1] * Sin($rad), $aXY[0] * Sin($rad) + $aXY[1] * Cos($rad)] Return $aNewXY EndFunc This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)
algiuxas Posted September 14, 2015 Author Posted September 14, 2015 Like this:#include <Array.au3> Local $aCoord = [5, 90] Local $Angle = 270 ; in degrees, anti-clockwise Local $aNewCoord = _Rotate($aCoord, $Angle) _ArrayDisplay($aNewCoord) Func _Rotate($aXY, $deg) Local $rad = 2 * 3.141592653589793238 * $deg / 360 Local $aNewXY = [$aXY[0] * Cos($rad) - $aXY[1] * Sin($rad), $aXY[0] * Sin($rad) + $aXY[1] * Cos($rad)] Return $aNewXY EndFunc Thanks, but I figured out myself After switching years ago to Linux, sadly I don't use AutoIt anymore.
UEZ Posted September 14, 2015 Posted September 14, 2015 (edited) Here another way:expandcollapse popup#include <GDIPlus.au3> #include <Array.au3> _GDIPlus_Startup() Global Const $iW = 600, $iH = 400, $iSize = 4 Global Const $hGUI = GUICreate("Test", $iW, $iH) GUISetState() Global Const $hCanvas = _GDIPlus_GraphicsCreateFromHWND($hGUI), $hBrush = _GDIPlus_BrushCreateSolid(0xFF00FF00) _GDIPlus_GraphicsSetPixelOffsetMode($hCanvas, 4) Global $aResult _GDIPlus_GraphicsDrawLine($hCanvas, 0, $iH / 2, $iW, $iH / 2) _GDIPlus_GraphicsDrawLine($hCanvas, $iW / 2, 0, $iW / 2, $iH) Global $iX = 5, $iY = 90 $aResult = TransformPoint($iX, $iY, 0) _GDIPlus_GraphicsFillRect($hCanvas, $iW / 2 + $aResult[0] - $iSize / 2, $iH / 2 + $aResult[1] - $iSize / 2, $iSize, $iSize, $hBrush) _GDIPlus_GraphicsDrawString($hCanvas, $iX & "," & $iY, $iW / 2 + $aResult[0], $iH / 2 + $aResult[1], "Arial", 8) $aResult = TransformPoint($iX, $iY, 270) _GDIPlus_BrushSetSolidColor($hBrush, 0xFF0000FF) _GDIPlus_GraphicsFillRect($hCanvas, $iW / 2 + $aResult[0] - $iSize / 2, $iH / 2 + $aResult[1] - $iSize / 2, $iSize, $iSize, $hBrush) _GDIPlus_GraphicsDrawString($hCanvas, Round($aResult[0], 0) & "," & Round(-$aResult[1], 0), $iW / 2 + $aResult[0], $iH / 2 + $aResult[1], "Arial", 8) _GDIPlus_GraphicsDrawString($hCanvas, "0,0", $iW / 2, $iH / 2, "Arial", 8) _GDIPlus_BrushDispose($hBrush) _GDIPlus_GraphicsDispose($hCanvas) _GDIPlus_Shutdown() Do Until GUIGetMsg() = -3 Func TransformPoint($fX, $fY, $fAngle) Local Const $hMatrix = _GDIPlus_MatrixCreate(), $hPath = _GDIPlus_PathCreate() _GDIPlus_PathAddRectangle($hPath, $fX, $fY, 0.1, 0.1) _GDIPlus_MatrixRotate($hMatrix, -180 + $fAngle + 2 * $fX) _GDIPlus_PathTransform($hPath, $hMatrix) Local Const $aBounds = _GDIPlus_PathGetWorldBounds($hPath) _GDIPlus_MatrixDispose($hMatrix) _GDIPlus_PathDispose($hPath) Return $aBounds EndFunc $aResult[0] = x pos$aResult[1] = y pos Edited September 14, 2015 by UEZ Extented the example Please don't send me any personal message and ask for support! I will not reply! Selection of finest graphical examples at Codepen.io The own fart smells best! ✌Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!¯\_(ツ)_/¯ ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ
Malkey Posted September 15, 2015 Posted September 15, 2015 (edited) @UEZUsing your example and rotating a point (5,90) around the origin 270deg clockwise, I was not getting the result (-90.5).So I modified your example.expandcollapse popup#include <GDIPlus.au3> _GDIPlus_Startup() Global Const $iW = 600, $iH = 400, $iSize = 4 Global Const $hGUI = GUICreate("Test", $iW, $iH) GUISetState() Global Const $hCanvas = _GDIPlus_GraphicsCreateFromHWND($hGUI), $hBrush = _GDIPlus_BrushCreateSolid(0xFF00FF00) _GDIPlus_GraphicsSetPixelOffsetMode($hCanvas, 4) Global $aResult ;Arrow heads $hPen = _GDIPlus_PenCreate(0xFF000000, 2) $hEndCap = _GDIPlus_ArrowCapCreate(3, 6) _GDIPlus_PenSetCustomEndCap($hPen, $hEndCap) _GDIPlus_GraphicsDrawLine($hCanvas, 0, $iH / 2, $iW, $iH / 2, $hPen) _GDIPlus_GraphicsDrawString($hCanvas, "X", $iW - 15, $iH / 2 - 20, "Arial", 12) _GDIPlus_GraphicsDrawLine($hCanvas, $iW / 2, $iH, $iW / 2, 0, $hPen) _GDIPlus_GraphicsDrawString($hCanvas, "Y", ($iW / 2) + 5, 5, "Arial", 12) Global $iX = 5, $iY = 90 Local $aResult[2] = [$iX, -$iY] ; To have positive x-axie to the right, and positive y-axis up on the screen. _GDIPlus_GraphicsFillRect($hCanvas, $iW / 2 + $aResult[0] - $iSize / 2, $iH / 2 + $aResult[1] - $iSize / 2, $iSize, $iSize, $hBrush) _GDIPlus_GraphicsDrawString($hCanvas, $iX & "," & $iY, $iW / 2 + $aResult[0], $iH / 2 + $aResult[1], "Arial", 8) $aResult = TransformPoint($iX, $iY, 270) ; Clockwise rotaton ;$aResult = TransformPoint($iX, $iY, 270 ,false) ; Anti-clockwise rotaton _GDIPlus_BrushSetSolidColor($hBrush, 0xFF0000FF) _GDIPlus_GraphicsFillRect($hCanvas, $iW / 2 + $aResult[0] - $iSize / 2, $iH / 2 + $aResult[1] - $iSize / 2, $iSize, $iSize, $hBrush) _GDIPlus_GraphicsDrawString($hCanvas, Round($aResult[0], 0) & "," & Round(-$aResult[1], 0), $iW / 2 + $aResult[0], $iH / 2 + $aResult[1], "Arial", 8) _GDIPlus_GraphicsDrawString($hCanvas, "0,0", $iW / 2, $iH / 2, "Arial", 8) _GDIPlus_ArrowCapDispose($hEndCap) _GDIPlus_PenDispose($hPen) _GDIPlus_BrushDispose($hBrush) _GDIPlus_GraphicsDispose($hCanvas) _GDIPlus_Shutdown() Do Until GUIGetMsg() = -3 ; With $bClockwise = True, point is rotated clockwise around origin. ; With $bClockwise = False, point is rotated anti-clockwise around origin. ; http://stackoverflow.com/questions/3162643/proper-trigonometry-for-rotating-a-point-around-the-origin Func TransformPoint($fX, $fY, $fAngle, $bClockwise = True) Local $Pi = 4 * ATan(1) Local $s = Sin($fAngle * $Pi / 180); Local $c = Cos($fAngle * $Pi / 180) If $bClockwise Then Local $aRet[2] = [$fX * $c + $fY * $s, -(-$fX * $s + $fY * $c)] ; By default positive y-axis is down. Reverse sign of "y" coordinate to make positive y-axis to up. Else Local $aRet[2] = [$fX * $c - $fY * $s, -($fX * $s + $fY * $c)] ; Minus y coordinate makes positive y-axis to up. EndIf Return $aRet EndFunc ;==>TransformPointTo check, rotating 270deg clockwise is the same as rotating 90deg anticlockwise. Edited September 15, 2015 by Malkey Removed incorrect comment line.
algiuxas Posted September 15, 2015 Author Posted September 15, 2015 Here another way:expandcollapse popup#include <GDIPlus.au3> #include <Array.au3> _GDIPlus_Startup() Global Const $iW = 600, $iH = 400, $iSize = 4 Global Const $hGUI = GUICreate("Test", $iW, $iH) GUISetState() Global Const $hCanvas = _GDIPlus_GraphicsCreateFromHWND($hGUI), $hBrush = _GDIPlus_BrushCreateSolid(0xFF00FF00) _GDIPlus_GraphicsSetPixelOffsetMode($hCanvas, 4) Global $aResult _GDIPlus_GraphicsDrawLine($hCanvas, 0, $iH / 2, $iW, $iH / 2) _GDIPlus_GraphicsDrawLine($hCanvas, $iW / 2, 0, $iW / 2, $iH) Global $iX = 5, $iY = 90 $aResult = TransformPoint($iX, $iY, 0) _GDIPlus_GraphicsFillRect($hCanvas, $iW / 2 + $aResult[0] - $iSize / 2, $iH / 2 + $aResult[1] - $iSize / 2, $iSize, $iSize, $hBrush) _GDIPlus_GraphicsDrawString($hCanvas, $iX & "," & $iY, $iW / 2 + $aResult[0], $iH / 2 + $aResult[1], "Arial", 8) $aResult = TransformPoint($iX, $iY, 270) _GDIPlus_BrushSetSolidColor($hBrush, 0xFF0000FF) _GDIPlus_GraphicsFillRect($hCanvas, $iW / 2 + $aResult[0] - $iSize / 2, $iH / 2 + $aResult[1] - $iSize / 2, $iSize, $iSize, $hBrush) _GDIPlus_GraphicsDrawString($hCanvas, Round($aResult[0], 0) & "," & Round(-$aResult[1], 0), $iW / 2 + $aResult[0], $iH / 2 + $aResult[1], "Arial", 8) _GDIPlus_GraphicsDrawString($hCanvas, "0,0", $iW / 2, $iH / 2, "Arial", 8) _GDIPlus_BrushDispose($hBrush) _GDIPlus_GraphicsDispose($hCanvas) _GDIPlus_Shutdown() Do Until GUIGetMsg() = -3 Func TransformPoint($fX, $fY, $fAngle) Local Const $hMatrix = _GDIPlus_MatrixCreate(), $hPath = _GDIPlus_PathCreate() _GDIPlus_PathAddRectangle($hPath, $fX, $fY, 0.1, 0.1) _GDIPlus_MatrixRotate($hMatrix, -180 + $fAngle + 2 * $fX) _GDIPlus_PathTransform($hPath, $hMatrix) Local Const $aBounds = _GDIPlus_PathGetWorldBounds($hPath) _GDIPlus_MatrixDispose($hMatrix) _GDIPlus_PathDispose($hPath) Return $aBounds EndFunc $aResult[0] = x pos$aResult[1] = y posThanks, nice work! After switching years ago to Linux, sadly I don't use AutoIt anymore.
UEZ Posted September 15, 2015 Posted September 15, 2015 @algiuxas: thanks but Malkey is right. Unfortunately the rotation using the GDI+ _GDIPlus_MatrixRotate doesn't produces the proper result without any additional math. It was a try to use pur GDI+ without further math but it has failed. Please don't send me any personal message and ask for support! I will not reply! Selection of finest graphical examples at Codepen.io The own fart smells best! ✌Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!¯\_(ツ)_/¯ ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ
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