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Failed To Gain Raw Access To Bitmapdata

Almost another order of magnitude improvement can be gained with using the new numpy module! Bummer.Rumor has it that py 2.6 will use VC 2005, but until then it appearsthat there's no free (beer or speech) option for an end-to-end freelycompilable python system that works with They will all be dead and gone for all my emails to you. Almost another order of magnitude improvement can be gained with using the new numpy module! """ if __name__ == '__main__': import sys,os import run run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:]) Jump to have a peek here

Its working fine with the JPEG and PNG (24 > bit) images > > bitmap = wx.Bitmap(bmpFilePath, wx.BITMAP_TYPE_BMP) > bitDepth = bmp.GetDepth() > if bitDepth == 24: > Attachments (1) bitmapfrombuffer.py ​ (1.8 KB) - added by svniemeijer 9 years ago. if not USE_NUMPY: t = timeit.Timer("bmp = s.MakeBitmap(10, 20, 30)") else: t = timeit.Timer("bmp = s.MakeBitmap2(10, 20, 30)") log.write("Timing...\n") num = 100 tm = t.timeit(num) log.write("%d passes in %f seconds == I could look atDirectPython or the equivalent on the other platforms, but I wanted touse an out-of-the-box wxPython if I could.Post by Robin DunnBTW, I expect that there will be some https://github.com/wxWidgets/wxPython/blob/master/demo/RawBitmapAccess.py

Terms Privacy Opt Out Choices Advertise Get latest updates about Open Source Projects, Conferences and News. Fixed by changing the outer notebook to AuiNotebook. there were some good instructions for setting that up-- Hi, I will kill all ads in google gmail. wxPython was build using: --with-mac --enable-monolithic --with-opengl --enable-geometry --enable-display --disable-debugreport When running the attached bitmapfrombuffer.py file (using Python 2.4.4 and numarray 1.5.2) I get the following error: ======== Traceback (most recent

It is a bit faster than the above because it # avoids the iterator/generator magic, but it is not nearly as # 'clean' looking ;-) #pixels = pixelData.GetPixels() #for y in def _SetSize( self ): pixels = tuple( self.parent.GetClientSize() ) self.SetSize( pixels ) self.canvas.SetSize( pixels ) self.figure.set_size_inches( float( pixels[0] )/self.figure.get_dpi(), float( pixels[1] )/self.figure.get_dpi() ) What could the cause of this error be? Reload to refresh your session. Simply edit this module in the \"Demo Code\" tab and set TIMEIT to True and then watch the log window when the sample is reloaded.

But doesn'twx.ImageFrom data make a copy anyway?So wx.BitmapFromBuffer should be the fastest, but a notable amount.weird.-Chris--Christopher Barker, Ph.D.OceanographerNOAA/OR&R/HAZMAT (206) 526-6959 voice7600 Sand Point Way NE (206) 526-6329 faxSeattle, WA 98115 (206) Platform: Windows XP SP3 wxPython: '2.8.10.1 (msw-unicode)' Python 2.5.4 -- ***************************************** Oswaldo Hernández oswaldo (@) soft-com (.) es ***************************************** PD: Antes de imprimir este mensaje, asegúrese de que es necesario. def _SetSize( self ): pixels = tuple( self.parent.GetClientSize() ) self.SetSize( pixels ) self.canvas.SetSize( pixels ) self.figure.set_size_inches( float( pixels[0] )/self.figure.get_dpi(), float( pixels[1] )/self.figure.get_dpi() ) What could the cause of this error be? On my machines there is about an order of magnitude difference between the raw access functions and using a numarray.array with wx.BitmapFromBufferRGBA!

Score: 10 def OnPaint(self, evt): pdc = wx.PaintDC(self) try: dc = wx.GCDC(pdc) except: dc = pdc rect = wx.Rect(0,0, 100, 100) for RGB, pos in [((178, 34, 34), ( 50, 90)), Unfortunately, it is happening when using FlatNotebook also. Reload to refresh your session. You signed out in another tab or window.

app = MyApp(redirect=True, filename="output.txt") File "/Users/sander/Projects/beat/visan/carbon/root/wxpython/lib/python2.4/site-packages/wx-2.8-mac-unicode/wx/_core.py", line 7823, in init self._BootstrapApp() File "/Users/sander/Projects/beat/visan/carbon/root/wxpython/lib/python2.4/site-packages/wx-2.8-mac-unicode/wx/_core.py", line 7420, in _BootstrapApp return _core_.PyAppBootstrapApp(*args, kwargs) File "../../../../testing/bitmapfrombuffer.py", line 64, in OnInit frame = MyFrame(None, "BitmapFromBufferRGBA bug Using 2.7.1.3, I'mactually getting slower times using BitmapFromBuffer than the old wayof wx.ImageFromData + wx.BitmapFromImage.Anyway, I thought it might be the overhead of allocating a new bitmapwxBitmap* bmp = new wxBitmap(width, You seem to have CSS turned off. Please refer to our Privacy Policy or Contact Us for more details You seem to have CSS turned off.

File "prueba2.py", line 154, in RenderGC gc.DrawBitmap(bmp, 10,10) File "C:\Python25\lib\site-packages\wx-2.8-msw-unicode\wx\lib\graphics.py", line 1308, in DrawBitmap bmp = GraphicsBitmap.CreateFromBitmap(bmp) File "C:\Python25\lib\site-packages\wx-2.8-msw-unicode\wx\lib\graphics.py", line 476, in CreateFromBitmap b._surface = wx.lib.wxcairo.ImageSurfaceFromBitmap(bitmap) File "c:\python25\lib\site-packages\wx-2.8-msw-unicode\wx\lib\wxcairo.py", line 216, in navigate here Using 2.7.1.3, I'mactually getting slower times using BitmapFromBuffer than the old wayof wx.ImageFromData + wx.BitmapFromImage.Anyway, I thought it might be the overhead of allocating a new bitmapall the time in wx.BitmapFromBuffer, I've tweaked it a bit and added itto _bitmap.i, and will add a RGBA version too.Cool!Rob Christopher Barker 2006-11-01 16:52:33 UTC PermalinkRaw Message Post by Rob McMullenI was only able to El medio ambiente está en nuestra mano. -- To unsubscribe, send email to [emailprotected] or visit http://groups.google.com/group/wxPython-users?hl=en Git wxpython-users Programming list archiving by: Enterprise Git Hosting [email protected] Discussion: BitmapFromBuffer speed and

bmp = wx.EmptyBitmap(DIM, DIM, 32) # Create an object that facilitates access to the bitmap's # pixel buffer pixelData = wx.AlphaPixelData(bmp) if not pixelData: raise RuntimeError("Failed to gain raw access to HA HA bye bye ads I just massacred you!!! -- To unsubscribe, send email to [hidden email] or visit http://groups.google.com/group/wxPython-users?hl=en C M Reply | Threaded Open this post in threaded view pixData) {// raise an exception...wxPyErr_SetString(PyExc_RuntimeError,"Failed to gain raw access to bitmap data.");}wxNativePixelData::Iterator p(pixData);int height=self->GetHeight();int width=self->GetWidth();for (int y=0; yCheck This Out Download in other formats: Comma-delimited Text Tab-delimited Text RSS Feed Powered by Trac 1.0.2 By Edgewall Software.

Also happening when there is a FlatNotebook on each of the 3 pages of an AuiNotebook. TEST_GC = False #---------------------------------------------------------------------- # attempt to import a numeric module if requested to if USE_NUMPY: try: import numpy def makeByteArray(shape): return numpy.empty(shape, numpy.uint8) numtype = 'numpy' except ImportError: try: import They provide both a random access method, and an iterator interface.

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Test script to trigger BitmapFromBufferRGBA issue Download all attachments as: .zip Oldest first Newest first Threaded Comments only Change History (4) Changed 9 years ago by svniemeijer Attachment bitmapfrombuffer.py​ added Test Please don't fill out this field. Anyway, the main purpose of the raw bitmap accessaddition is for fiddling with the guts of an existing bitmap, ratherthan for creating whole new bitmaps, so that gives us some goodadvantages Skip to content Ignore Learn more Please note that GitHub no longer supports old versions of Firefox.

Rob McMullen 2006-10-31 04:02:32 UTC PermalinkRaw Message Post by Robin DunnHowever, my times for CopyFromBuffer and wx.ImageFromData +wx.BitmapFromImage on your sample are all within a few milliseconds ofeach other (again, just Relax with wxPython! All Rights Reserved. http://computerhelpdev.com/failed-to/sos-failed-to-load-data-access-dll.php Briefly describe the problem (required): Upload screenshot of ad (required): Select a file, or drag & drop file here. ✔ ✘ Please provide the ad click URL, if possible: Home Browse

Werner Thread view [Matplotlib-users] RuntimeError: failed to gain raw access From: Werner F. Returns the modified color. @param color: color object to adjust @type color: wx.Color @param percent: percent to adjust +(brighten) or -(darken) @type percent: int @keyword alpha: amount to adjust alpha channel for pixel in pixelData: pixel.Set(red, green, blue, alpha) # This block of code is another way to do the same as above, # but with the accessor interface instead of the We recommend upgrading to the latest Safari, Google Chrome, or Firefox.

Score: 8 def MakeBitmap(self, red, green, blue, alpha=128): # Create the bitmap that we will stuff pixel values into using # the raw bitmap access classes. Unfortunately, although these classes are convienient ways to access and update the contents of a wx.Bitmap, we lose most of the efficiency of the C++ classes by requiring one or more It is a bit faster than the above because it # avoids the iterator/generator magic, but it is not nearly as # 'clean' looking ;-) #pixels = pixelData.GetPixels() #for y in TIMEIT = False # how big to make the bitmaps DIM = 100 # should we use a wx.GraphicsContext for painting?

bmp = wx.EmptyBitmap(DIM, DIM, 32) # Create an object that facilitates access to the bitmap's # pixel buffer pixelData = wx.AlphaPixelData(bmp) if not pixelData: raise RuntimeError("Failed to gain raw access to Anyway, the main purpose of the raw bitmap accessaddition is for fiddling with the guts of an existing bitmap, ratherthan for creating whole new bitmaps, so that gives us some goodadvantages You seem to have CSS turned off. Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 32 Star 153 Fork 93 wxWidgets/wxPython Code Issues 1 Pull requests 4 Projects

On my machines there is about an order of magnitude difference between the raw access functions and using a numarray.array with wx.BitmapFromBufferRGBA! To see this difference for yourself this module has been instrumented to allow you to experiment with using either the raw access or numpy/numarray, and also to time how long it Terms Privacy Security Status Help You can't perform that action at this time. for pixel in pixelData: pixel.Set(red, green, blue, alpha) # This block of code is another way to do the same as above, # but with the accessor interface instead of the