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Hello,<br>
<br>
<br>
well, I have created the image for myself with google coordinates
:-) and I've checked the coordinates of the image and of the
cursor...of course....so definitely, it is the image, which is not
scaled correctly each time, you can see when looking at those
screenshots. The image must be compressed in height (using
EPSG:4326) because of the location at 53° N...<br>
<br>
I've checked the ECW and it looks and works fine,....can you tell me
the commands to create an ecw-file from worldfile? it is a
commandline tool, right?<br>
<br>
And of course, you mention the "lot of things" the application is
doing while zoom or pan....but the image is even not compressed in
height being shown the first time (without any zoom)<br>
<br>
Well, I think that should be checked...if yomebody got time...it is
not important to me at the moment...it might be nice to show some
bugs, too :-) but don't know if it is planned to change in gvsig
mobile 1.0?<br>
<br>
<br>
Regards<br>
Marcel<br>
<br>
<br>
<br>
<br>
Am 31.03.2011 19:10, schrieb Juan Lucas Dominguez Rubio:
<blockquote
cite="mid:E43C32BC5843E34FB4C00CDFAAAAF7D8017B5392@australia.prodevelop.local"
type="cite">
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charset=ISO-8859-1">
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<div id="idOWAReplyText28773">
<div><font size="3" color="#000000" face="Times New Roman">Hello,thanks
for the files.</font></div>
<div> </div>
<div>I mean that when you do zoom and pan in gvSIG Mobile, the
application does a lot of little things in order to draw the
image using as little memory as possible, and if one of those
steps is wrong, then the image might be misplaced, but I have
never noticed this.</div>
<div> </div>
<div>I remember that there is a little bug that causes the GPS
arrow to be misplaced when you do some zoom and pan: until the
next GPS coordinates arrive (and refreshes the GPS arrow), it
can be misplaced. Maybe that's the problem you noticed? Is the
arrow misplaced even after you have received several new GPS
coordinates?</div>
<div> </div>
<div>To find out who is misplaced (the image or the arrow) you
can load a shapefile (which always is ok, I think).You can
download some ECW and SHP of Bremenvorde from here:</div>
<div> </div>
<div><a moz-do-not-send="true"
href="https://correo.prodevelop.es/descarga/gvsig/mobile/">https://correo.prodevelop.es/descarga/gvsig/mobile/</a></div>
<div> </div>
<div> </div>
<div>The files called "...31467..." are in EPSG:31467, in case
you prefer those. I created them with GDAL and OGR, so I think
they have a little error of 1 or 2 meters (which I think is
not a problem in this case).</div>
<div> </div>
<div>So if you load the JPG, then the SHP and use the GPS, what
happens?</div>
<div> </div>
<div>If the SHP and the JPG are consistent and the GPS is
misplaced, then there is a bug related to the GPS
arrow (temporarily? always?)</div>
<div> </div>
<div>If the GPS and the SHP are consistent and the JPG is not,
then there is a problem with the WKR driver.</div>
<div> </div>
<div> </div>
<div>Regards,</div>
<div><font size="2" face="Courier New"><font size="3"
face="Times New Roman">Juan Lucas Domínguez Rubio<br>
</font>---</font></div>
</div>
<div id="idSignature57021">
<div><font size="2" face="Courier New"><font size="2"
face="Courier New"><font size="2" face="Courier New">Prodevelop
SL, Valencia (España)</font></font></font></div>
<div>
<div><font size="2" face="Courier New"><font size="2"
face="Courier New"><font size="2" face="Courier New">Tlf.:
96.351.06.12 -- Fax: 96.351.09.68<br>
</font><a moz-do-not-send="true"
href="http://www.prodevelop.es/"><font size="2"
face="Courier New">http://www.prodevelop.es</font></a><br>
<font size="2" face="Courier New">---</font></font></font></div>
</div>
</div>
<div><br>
<hr>
<font size="2" face="Tahoma"><b>De:</b>
<a class="moz-txt-link-abbreviated" href="mailto:gvsig_internacional-bounces@listserv.gva.es">gvsig_internacional-bounces@listserv.gva.es</a> en nombre de
Marcel Schoolmeesters<br>
<b>Enviado el:</b> jue 31/03/2011 17:54<br>
<b>Para:</b> Users and Developers mailing list<br>
<b>Asunto:</b> Re: [Gvsig_english] Importing a raster image
with gvSIG Mobile<br>
</font><br>
</div>
<div>Hello.<br>
<br>
I know those performance problems. But <u><b>if</b></u> the
transformation is performed, it should <u>not</u> be wrong I
think :) better would be an error message which tells the user
that the image is too big or something...<br>
<br>
<br>
I cannot upload the image (25MB *.png or 5MB *.jpg), but I have
uploaded the jpg to rapidshare, instead. <i>(The png file is
about 2MB too big, it won't even be loaded, so I did not
upload it)</i><br>
<blockquote>JPG: <a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="http://rapidshare.com/files/455277713/jpg-raster.zip">http://rapidshare.com/files/455277713/jpg-raster.zip</a><br>
ECW: <a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://rapidshare.com/files/455279357/ecw-map.ecw">http://rapidshare.com/files/455279357/ecw-map.ecw</a><br>
</blockquote>
<br>
I have compressed the file to ecw, too, but it is not
geo-referenced, I think. I tried AU ECW Compressor...because the
manual says, it will add geo-information...but it doesn't....not
from an extra worldfile.<br>
<br>
Well, to load the worldfile of the JPG, you need to change the
getWorldFileExtensions() in WKFRasterDriver.java, I think. Or
change the extension to *.wld... but I'm sure, you know.
(however, jgw seems to be the default one, isn't it?) <br>
<br>
<br>
Regards,<br>
<br>
Marcel<br>
<br>
<br>
<br>
<br>
Am 31.03.2011 17:04, schrieb Juan Lucas Dominguez Rubio:
<blockquote>
<div id="idOWAReplyText37810">
<div><font size="3" color="#000000" face="Times New Roman">Hello,
</font></div>
<div>When zooming in and out with a non-ECW image, the
app performs some shift and clip operations to minimize
the amount of memory needed. I have never seen
any strange bevavior there, but there might be a bug, yes.</div>
<div> </div>
<div>gdal_translate (FWTools) is free and creates faster,
more reliable ECW images.</div>
<div> </div>
<div>which format are you using?
<div>can you send the image to the list? (with the georef.
file if it's not a ecw file)</div>
</div>
<div> </div>
<div>Regards,</div>
</div>
<div id="idSignature57279">
<div><font size="2" face="Courier New"><font size="3"
face="Times New Roman">Juan Lucas Domínguez Rubio<br>
</font>---</font></div>
<div><font size="2" face="Courier New"><font size="2"
face="Courier New"><font size="2" face="Courier New">Prodevelop
SL, Valencia (España)</font></font></font></div>
<div>
<div><font size="2" face="Courier New"><font size="2"
face="Courier New"><font size="2" face="Courier New">Tlf.:
96.351.06.12 -- Fax: 96.351.09.68<br>
</font><a moz-do-not-send="true"
href="http://www.prodevelop.es/"><font size="2"
face="Courier New">http://www.prodevelop.es</font></a><br>
<font size="2" face="Courier New">---</font></font></font></div>
</div>
</div>
<div><br>
<hr>
<font size="2" face="Tahoma"><b>De:</b> <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:gvsig_internacional-bounces@listserv.gva.es">gvsig_internacional-bounces@listserv.gva.es</a>
en nombre de Marcel Schoolmeesters<br>
<b>Enviado el:</b> jue 31/03/2011 16:51<br>
<b>Para:</b> Users and Developers mailing list<br>
<b>Asunto:</b> Re: [Gvsig_english] Importing a raster
image with gvSIG Mobile<br>
</font><br>
</div>
<div>Hey all,<br>
<br>
I've got new interesting findings :-)<br>
<ul>
<li>The error of the height of the image does<u> not
appear at all</u> when I zoom <b>three </b>times. </li>
<li>When I zoom <b>twice</b>, the error appears<u> only
in the middle </u>of the image, but not when I see
the background of the Map! I cannot say exactly,... </li>
<li>But when I does not zoom or<i><b> only once...or four
times or more</b></i>... the image is<u> not resized
</u>I think...it is the original ratio.... </li>
</ul>
I have got some screenshots, so that you might understand it
better :)<br>
<br>
Perhaps, it is a graphical bug? I don't know...perhaps,
somebody's got an idea? would be cool to be fixed!<br>
<br>
<br>
Regards,<br>
<br>
Marcel<br>
<br>
<br>
Am 30.03.2011 16:42, schrieb Marcel Schoolmeesters:
<blockquote>Thanks for the explanation.<br>
<br>
As I said, the ImageExt values are correct...(y is
calculated by _y + _h, I think) .....I have debugged the
data flow and everything is understandable up to this
function (and afterwards. What the function is doing might
be clear, and even the values of the viewRect,
too,...after your little explanation, what should be
self-evident :-) <br>
<br>
However, the final lower/left edge of the picture is not
shown at 53.475096504° where it should be, but somewhere
at 53.464...and I cannot find the code where this is
calculated...(but better to say that I have given up
because of so many steps...)<br>
<br>
Best regards,<br>
<br>
Marcel<br>
<br>
<br>
Am 30.03.2011 09:32, schrieb Juan Lucas Dominguez Rubio:
<blockquote>
<div id="idOWAReplyText99254">
<div><font size="3" color="#000000" face="Times New
Roman">Hello,</font></div>
<div>that method computes the extent of the view when
you add the first layer. The app knows the size of
the screen and the extent of the layer, and their
ratios are different, so you have to do a simple
computation to find out the extent of the new view.</div>
<div> </div>
<div>Maybe you have misunderstood the extent of a
layer and the extent of the view?</div>
<div> </div>
<div>When you add the first layer, the extent of the
view is the smallest rectangle which contains the
extent of the layer and, at the same
time, respects the width/height ratio of the screen,
of course.</div>
<div> </div>
<div>Regards,</div>
<div><font size="2" face="Courier New"><font size="3"
face="Times New Roman">Juan Lucas Domínguez
Rubio<br>
</font>---</font></div>
</div>
<div id="idSignature16877">
<div><font size="2" face="Courier New"><font size="2"
face="Courier New"><font size="2" face="Courier
New">Prodevelop SL, Valencia (España)</font></font></font></div>
<div>
<div><font size="2" face="Courier New"><font
size="2" face="Courier New"><font size="2"
face="Courier New">Tlf.: 96.351.06.12 --
Fax: 96.351.09.68<br>
</font><a moz-do-not-send="true"
href="http://www.prodevelop.es/"><font
size="2" face="Courier New">http://www.prodevelop.es</font></a><br>
<font size="2" face="Courier New">---</font></font></font></div>
</div>
</div>
<div><br>
<hr>
<font size="2" face="Tahoma"><b>De:</b> <a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:gvsig_internacional-bounces@listserv.gva.es">gvsig_internacional-bounces@listserv.gva.es</a>
en nombre de Marcel Schoolmeesters<br>
<b>Enviado el:</b> mar 29/03/2011 21:20<br>
<b>Para:</b> Users and Developers mailing list<br>
<b>Asunto:</b> Re: [Gvsig_english] Importing a
raster image with gvSIG Mobile<br>
</font><br>
</div>
<div>well, I think the main problem of understanding is
in function MapContext.<b>getExtentFromFullExtentAndImageSize</b>()
... I think the new height etc are calculated there? <br>
<br>
Am 29.03.2011 21:00, schrieb Marcel Schoolmeesters:
<blockquote>Hello, <br>
<br>
I have tried to load a raster image (had to try jpg,
because *.png did not even load), but I am getting a
wrong position of the extent. Anybody got the same
error? <br>
<br>
I have tried the debug mode, but there are too many
functions to catch on. Perhaps anybody can help? <br>
<br>
Somewhere the map origin is changed from the upper
edge to the lower edge, that far I could follow, but
then the image extent (height) and the origin coords
(of Y) has been changed. Why? it seems to be very
hard to understand the whole way of building the
image at the right place. <br>
<br>
However, in attachment the original rectangle and
the changed one are shown with their values while
debugging... <br>
<br>
The lower edge of the final image is positioned
between those Y values (@ 53.464) but it needs to be
positioned at 53.475.... <br>
<br>
what is getRasterTansformation() actually doing? <br>
<br>
<br>
Thanks in advance, if anybody can help. However,
that issue should be fixed, I think. The import of
PNG is not even possible, as I mentioned before.. <br>
<br>
Regards <br>
<br>
Marcel <br>
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