<div dir="ltr"><div><br><br></div>Hi All,<br><div><div class="gmail_quote"><div dir="ltr"><div><div><div class="gmail_quote"><div dir="ltr"><div><div><div><div><br></div>This is the projection information of a single Landsat scene in ENVI, GRASS and using gdalwarp. GRASS and gdalwarp gave somewhat similar output but ENVI is totally different. I have been informed that the projected image from ENVI is correct as verified from the earlier work.<br><br></div>Original data (in Sinusoidal Projection)<br>------------------------------------------------------<br>Corner Coordinates:<br>Upper Left (-10801805.198W, 4130102.079N)<br>Lower Left (-10801805.198W, 3971252.079N)<br>Upper Right (-10642955.198W, 4130102.079N)<br>Lower Right (-10642955.198W, 3971252.079N)<br><br><br></div><span style="color:rgb(106,168,79)">Reprojected in GRASS GIS (<span>Lambert Azimuthal Equal Area, Datum: WGS84</span>)<br>----------------------------------------------------------------------------------<br>N: 5564460 <br>S: 5185590 |<br>E: -5451390 <br>W: -5762490 </span> <br><br><span style="color:rgb(153,0,255)">Reprojected in ENVI (<span>Lambert Azimuthal Equal Area</span><span>, Datum: WGS84</span>)<br>-------------------------------------------------------------------------<br>Corner Coordinates:<br><br>Upper Left (-2265106.681W, 1064601.383N)<br>Lower Left (-2265106.681W, 830181.383N)<br>Upper Right (-1960126.681W, 1064601.383N)<br>Lower Right (-1960126.681W, 830181.383N)<br></span><br><span style="color:rgb(11,83,148)">Reprojected using gdalwarp (<span>Lambert Azimuthal Equal Area</span><span>, Datum: WGS84</span>)<br>----------------------------------------------------------------------------------<br>Corner Coordinates:<br>Upper Left (-5148766.236W, 3000477.570N)<br>Lower Left (-5148766.236W, 2724274.973N)<br>Upper Right (-4826973.503W, 3000477.570N)<br>Lower Right (-4826973.503W, 2724274.973N)<br><br></span></div><span style="color:rgb(11,83,148)"><span style="color:rgb(0,0,0)">Any comment is appreciated.</span><br><br></span></div><div><span style="color:rgb(11,83,148)"><span style="color:rgb(0,0,0)">Uttam.</span><br></span></div><div dir="ltr"><span style="color:rgb(11,83,148)"><br></span></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Sep 27, 2015 at 1:48 AM, Markus Neteler <span dir="ltr"><<a href="mailto:neteler@osgeo.org" target="_blank">neteler@osgeo.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><p dir="ltr"><br>
On Sep 26, 2015 1:00 AM, "Uttam Kumar" <<a href="mailto:uttamsinha09@gmail.com" target="_blank">uttamsinha09@gmail.com</a>> wrote:<br>
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> Thank you all. It worked.<br>
><br>
> However I noticed that the projected boundary values of N, S, W and E in GRASS are not same as the values obtained from projecting the same image in ENVI image processing software and in gdalwarp.<br>
><br>
> Projection of the scene in Lambert Azimuthal Equal Area is similar (but not exactly equal) in GRASS and gdal, but in ENVI it is totally different. I just did the comparison to see if things are similar from different softwares in case they have to be ported to other platforms.</p>
</span><p dir="ltr">Can you print the projection information in both GRASS (g.proj -p or -w) and ENVI? Are they really the same?</p><span><font color="#888888">
<p dir="ltr">Markus</p>
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