Hi,<div><br></div><div>Thank you all for your help so far. I have been reading a few posts on resolving image dimension issues. Here is what I have done so far:</div><div><br></div><div>1) My system resolution is 1280 x 800</div><div><br></div><div>2) I went to e-prime->experiment->devices->display->edit->and changed to 1280 x 768 (I do not have 800 as a drop down option).</div><div><br></div><div>3) My images have uniform pixel dimensions of 424 x 283 (bmp images). </div><div><br></div><div>4) I am using canvas object given the large number of images I have: </div><div><br></div><div>After loading the offscreen canvas, my script (based on a previous response to my question) is as shown below:</div><div><br></div><div>xMargin = 120</div><div>yMargin = 120</div><div><br></div><div>myRect.Left = xMargin </div><div>myRect.Right = xMargin + 424</div><div>myRect.Top = yMargin </div><div>myRect.Bottom = ymargin + 283 </div><div><br></div><div>However, this caused my images to be cropped. I played around with the numbers for xMargin, but did not get any satisfactory results (images are cropped on either length or width). </div><div><br></div><div>Then, I resorted to trying this:</div><div><br></div><div><div>XRes = 1280</div><div>YRes = 768</div><div><br></div><div>'define source rect as full screen</div><div>src.Left = 120</div><div>src.Top = 120</div><div>src.Right = Display.XRes</div><div>src.Bottom = Display.YRes</div><div><br></div><div>'define destination rect as top left quadrant</div><div>dest.Left = 120</div><div>dest.Top = 120</div><div>dest.Right = 120 + Display.XRes + 424</div><div>dest.Bottom = 120 + Display.YRes + 283</div></div><div><br></div><div>This yielded better results, but my images are still cropped. What am I missing here? I changed screen dimensions on e-prime to approximately"match" my system's resolution, but still not getting the results I desire. </div><div><br></div><div>Thank you again for your input,</div><div>Corona<br><br>On Sunday, September 16, 2012 2:18:01 PM UTC-4, Corona wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Thank you. I had looked at the site link you've given, but it was more a problem of running the validation tool that was failing (although I do have an original Vista version). Apparently, the error I encountered is quite common (or so, the Microsoft user forums suggest). I however, found a roundabout way, which may be useful for others:
<a href="http://download.cnet.com/Help-Explorer-Viewer/3000-6675_4-10666661.html" target="_blank">http://download.cnet.com/Help-<wbr>Explorer-Viewer/3000-6675_4-<wbr>10666661.html</a> . This software application works as a reader for .hlp files.<div><br></div><div>Thank you for your suggestions. Now that I have the E-Basic help showing up(or visible), I can at least look it up.</div><div><br></div><div>Corona.<br><br>On Sunday, September 16, 2012 1:43:51 PM UTC-4, J wrote:<blockquote class="gmail_quote" style="margin:0;margin-left:0.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
This should help with viewing help files in Windows Vista (as a
novice e-basic programmer, I have to say that access to E-Basic Help
is essential).<br>
<br>
<a href="http://support.microsoft.com/kb/917607" target="_blank">http://support.microsoft.com/<wbr>kb/917607</a><br>
<br>
J<br>
<br>
<div>On 9/16/2012 11:36 AM, Corona wrote:<br>
</div>
<blockquote type="cite">Thank you. I do not have access to the e-prime basic
help, due to running a Windows-Vista, 64-bit system. .hlp files
are no longer recognized by Vista-32. I tried installing a tool
that allows .hlp files to be read, but it somehow failing. Is
there a workaround to this, so I can view the e-prime basic files?
<div><br>
</div>
<div>Thanks,</div>
<div>Corona<br>
<br>
On Sunday, September 16, 2012 11:39:37 AM UTC-4, Peter Quain
wrote:
<blockquote class="gmail_quote" style="margin:0;margin-left:0.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<br>
I cannot think of why might else you would crave this
knowledge. The
documention, topic Canvas, will help understanding this
code, you will
need to if it is Canvas that you wish to use<br>
<br>
At 01:31 AM 17/09/2012, you wrote:<br>
<blockquote type="cite">Thank you Alphonse, for the
quick reply. More for the purpose of understanding the
code, than
anything else, why do you repeat cnvs.Copy offScreenCnvs,
myRect,
myrect (with myrect twice)? More specifically, how is this
understood by
e-prime? Also, I am guessing I do not have to include a
slideobject?<br>
<br>
<br>
<br>
On Sunday, September 16, 2012 10:59:26 AM UTC-4, alphonse
wrote:<br>
<dl>
<br>
<dd>------------------------------<wbr>-----------------<br>
</dd>
<dd>'Prepare stimulus offscreen<br>
</dd>
<dd>offScreenCnvs.LoadImage stim<br>
<br>
</dd>
<dd>'Define the copy area<br>
</dd>
<dd>Dim myRect As Rect<br>
</dd>
<dd>myRect.Left = xMargin<br>
</dd>
<dd>myRect.Right = xMargin + 60<br>
</dd>
<dd>myRect.Top = yMargin<br>
</dd>
<dd>myRect.Bottom = yMargin + 60<br>
<br>
</dd>
<dd>'Copy prepared stimulus to screen<br>
</dd>
<dd>cnvs.Copy offScreenCnvs, myRect, myRect<br>
</dd>
<dd>
------------------------------<wbr>------------------------------<wbr>--------------<br>
<br>
</dd>
<dd>At 12:39 AM 17/09/2012, you wrote:<br>
<blockquote type="cite">
<dd>I am currently running a dot probe task with
visual paired stimuli
(positive, negative). I have a two fold question
pertaining to this
task:<br>
<br>
</dd>
<dd>1) I have about 60 images in one of my
trialprocs, and was therefore
advised to use the canvas option to preload
images. I have had little
success with using this object, particularly
because I do not entirely
understand the concepts of off-screen and
on-screen canvas. I have
managed to write a small script with help from the
references guides
posted on the e-prime website (as well as forums),
but am stuck when it
comes to the following statement:<br>
<br>
</dd>
<dd>1. When preparing the trial:<br>
<br>
</dd>
<dd> <br>
<br>
</dd>
<dd>targetCanvas.LoadImage stim <br>
<br>
</dd>
<dd> <br>
<br>
</dd>
<dd>Image is loaded to the top left corner. We need
to define 2 Rect
Objects: StimLoadRect and StimRect (see Rect
object in the E-Basic Help),
both the size of the images to-be-loaded, but the
StimRect at the
(Left,Right, Top,Bottom) coordinates where the
stimulus will be
displayed. When we copy the image from the offline
canvas to the online
canvas, we will copy from StimLoadRect to
StimRect.<br>
<br>
</dd>
<dd> <br>
<br>
</dd>
<dd>2. To run the stimulus:<br>
<br>
</dd>
<dd> <br>
<br>
</dd>
<dd>Display.WaitForVerticalBlank<br>
<br>
</dd>
<dd>c.setAttrib "StimOnset", clock.read<br>
<br>
</dd>
<dd>cnvs.copy targetCanvas, stimLoadRect, stimRect<br>
<br>
</dd>
<dd>sleep(stimDuration)<br>
<br>
</dd>
<dd>Display.WaitForVerticalBlank<br>
<br>
</dd>
<dd>Cnvs.clear ' or something else that erases the
stimulus, can be done
in the following trial<br>
<br>
</dd>
<dd> <br>
<br>
</dd>
<dd><font face="arial" size="2">Bolded lines: How do
I create a
stimLoadRect and stimRect image, a is asked for?
(I did find a script for
creating a rect object, but am unsure of how to
specify dimensions).<br>
</font><br>
</dd>
<dd><font face="arial" size="2">I assume that
pre-defining images and their
locations, means I do not have to specify them
as a SlideObject? (I am
guessing I am completely wrong here - please
feel free to correct me) . I
would also assume that the stimDuration, must be
defined as an attribute?
<br>
</font><br>
</dd>
<dd><font face="arial" size="2"> <br>
</font><br>
</dd>
<dd><font face="arial" size="2">Assuming I do not
have to go through this
convoluted path, I have another question. If I
could pre-load using the
SlideImage and ImageDisplay options, I am not
sure how to specify the
co-ordinates of where I want my image to be in
the properties section. I
know this appears elementary, but the actual
size of the images are 424 X
283, but when running, part of the images are
cut off. When I looked at
the properties of my slide object, I had set the
width at 25% . I assumed
this was the co-ordinate location in relation to
the actual screen size.
Guessing that this was an error on my part, I
reset the width to 100%,
but that meant that when I looked at the
slideobject (with the dotted
grid), one image seemed to complete cover the
other image. How do I fit
both images, and make sure their dimensions
remain the same?<br>
</font><br>
<font face="arial" size="2"><br>
</font></dd>
<dd><font face="arial" size="2">I apologize for this
rant. I only recently switched to e-prime from
using Inquisit, and am still trying to get a
hang of this software
tool.<br>
</font></dd>
<br>
<font face="arial" size="2"><br>
<dd>Thanks a ton for your reply,<br>
</dd>
</font><br>
<dd><font face="arial" size="2">Corona<br>
</font><br>
</dd>
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</dd>
<dd> </dd>
</blockquote>
</dd>
</dl>
</blockquote>
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