| Creating KML error [message #91439] |
Wed, 15 July 2015 06:38  |
natha
Messages: 482
Registered: October 2007
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Senior Member |
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Hi guys,
What am I doing wrong:
plot=plot([!values.f_nan],[!values.f_nan], xrange=[-50,-40], yrange=[70,80])
ax = plot.axes
ax[0].hide = 1
ax[1].hide = 1
ax[2].hide = 1
ax[3].hide = 1
poly=polygon([-47,-43,-43,-47,-47],[72.5,72.5,77.5,77.5,72.5 ],/data,color='black')
poly.save, 'square.kml'
% SAVE: Error writing file Expression must be a structure in this context:
SMAP.
Even when I try "plot.save, 'square.kml'" I get the same error...
help, !version, /str
** Structure !VERSION, 8 tags, length=104, data length=100:
ARCH STRING 'x86_64'
OS STRING 'linux'
OS_FAMILY STRING 'unix'
OS_NAME STRING 'linux'
RELEASE STRING '8.4'
BUILD_DATE STRING 'Sep 27 2014'
MEMORY_BITS INT 64
FILE_OFFSET_BITS
INT 64
Thank you in advance for your help,
nata
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| Re: Creating KML error [message #91442 is a reply to message #91439] |
Wed, 15 July 2015 11:49  |
Michael Galloy
Messages: 1114
Registered: April 2006
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Senior Member |
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On 7/15/15 7:38 AM, nata wrote:
> Hi guys,
>
> What am I doing wrong:
>
> plot=plot([!values.f_nan],[!values.f_nan], xrange=[-50,-40], yrange=[70,80])
> ax = plot.axes
> ax[0].hide = 1
> ax[1].hide = 1
> ax[2].hide = 1
> ax[3].hide = 1
>
> poly=polygon([-47,-43,-43,-47,-47],[72.5,72.5,77.5,77.5,72.5 ],/data,color='black')
> poly.save, 'square.kml'
>
> % SAVE: Error writing file Expression must be a structure in this context:
> SMAP.
>
> Even when I try "plot.save, 'square.kml'" I get the same error...
>
> help, !version, /str
> ** Structure !VERSION, 8 tags, length=104, data length=100:
> ARCH STRING 'x86_64'
> OS STRING 'linux'
> OS_FAMILY STRING 'unix'
> OS_NAME STRING 'linux'
> RELEASE STRING '8.4'
> BUILD_DATE STRING 'Sep 27 2014'
> MEMORY_BITS INT 64
> FILE_OFFSET_BITS
> INT 64
>
> Thank you in advance for your help,
> nata
I'm not sure, but it would make sense to me if KML/KMZ output was only
available from MAP.
In any case, a better error message would be useful.
Mike
--
Michael Galloy
www.michaelgalloy.com
Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)
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| Re: Creating KML error [message #91487 is a reply to message #91442] |
Mon, 20 July 2015 11:20 |
chris_torrence@NOSPAM
Messages: 528
Registered: March 2007
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Senior Member |
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On Wednesday, July 15, 2015 at 12:49:26 PM UTC-6, Michael Galloy wrote:
> On 7/15/15 7:38 AM, nata wrote:
>> Hi guys,
>>
>> What am I doing wrong:
>>
>> plot=plot([!values.f_nan],[!values.f_nan], xrange=[-50,-40], yrange=[70,80])
>> ax = plot.axes
>> ax[0].hide = 1
>> ax[1].hide = 1
>> ax[2].hide = 1
>> ax[3].hide = 1
>>
>> poly=polygon([-47,-43,-43,-47,-47],[72.5,72.5,77.5,77.5,72.5 ],/data,color='black')
>> poly.save, 'square.kml'
>>
>> % SAVE: Error writing file Expression must be a structure in this context:
>> SMAP.
>>
>> Even when I try "plot.save, 'square.kml'" I get the same error...
>>
>> help, !version, /str
>> ** Structure !VERSION, 8 tags, length=104, data length=100:
>> ARCH STRING 'x86_64'
>> OS STRING 'linux'
>> OS_FAMILY STRING 'unix'
>> OS_NAME STRING 'linux'
>> RELEASE STRING '8.4'
>> BUILD_DATE STRING 'Sep 27 2014'
>> MEMORY_BITS INT 64
>> FILE_OFFSET_BITS
>> INT 64
>>
>> Thank you in advance for your help,
>> nata
>
> I'm not sure, but it would make sense to me if KML/KMZ output was only
> available from MAP.
>
> In any case, a better error message would be useful.
>
> Mike
> --
> Michael Galloy
> www.michaelgalloy.com
> Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)
Okay, this is now fixed. If you want to apply the patch yourself, just open up lib/itools/components/idlitwritekml__define.pro
Around line 825, change:
if(~isZ) then begin
to:
if(~isZ && N_TAGS(sMap) gt 0) then begin
Then, around line 883, change:
ppoints[*,i] = points[*,conn[npoints+i+1]]
to:
ppoints[*,i] = points[0:isZ ? 2 : 1,conn[npoints+i+1]]
That's it! Now I have a nice square polygon in the middle of Greenland.
Cheers,
Chris
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