[Qgis-user] Exporting QGIS map to KML/KMZ
Charles Dixon-Paver
charles at kartoza.com
Sat Aug 14 03:24:42 PDT 2021
The lack of this functionality annoyed me a bit so I wrote a basic
iteration script which stitches the output kmls into a single kmz file. Not
sure what edge cases there will be but seems to work fine on basic styles.
https://github.com/zacharlie/effective-dollop/blob/main/pyqgis/qgis-vectors-to-kmz.py
On Fri, 13 Aug 2021 at 17:20, Charles Dixon-Paver <charles at kartoza.com>
wrote:
> I think it would be a lot easier to use the KML Tools algorithms to
> iterate over all the layers, then simply drag all the output KMZ files into
> Google Earth and export the folder containing them to a consolidated KMZ
> file. You can use PyQGIS, e.g:
>
> layers = [layer for layer in QgsProject.instance().mapLayers().values()]
>
> out_dir = 'P:/data/kml_output'
>
> for layer in layers:
> if layer.type() == QgsMapLayer.VectorLayer:
> try:
> layer_src = str(layer.source()).replace('\\','/')
> layer_file = os.path.join(out_dir, str(layer.name()) + '.kmz')
> processing.run("kmltools:exportkmz", {
> 'InputLayer': layer_src,
> 'NameField': '',
> 'DescriptionField': [],
> 'ExportStyle': True,
> 'UseGoogleIcon': None,
> 'AltitudeInterpretation': 1,
> 'AltitudeMode': 0,
> 'AltitudeModeField': '',
> 'AltitudeField': '',
> 'AltitudeAddend': 0,
> 'DateTimeStampField': '',
> 'DateTimeBeginField': '',
> 'DateTimeEndField': '',
> 'PhotoField': '',
> 'OutputKmz': layer_file,
> 'LineWidthFactor': 2,
> 'DateStampField': '',
> 'TimeStampField': '',
> 'DateBeginField': '',
> 'TimeBeginField': '',
> 'DateEndField': '',
> 'TimeEndField': ''
> })
> print('Exported: ' + layer_file)
> except Exception as err:
> print(err)
>
>
> Of course you could try unpack the data and stitch it in python too, but
> that's not as easy... But at least the styling etc will be managed for you.
>
> Regards
>
> On Fri, 13 Aug 2021 at 16:50, Richard McDonnell <richard.mcdonnell at opw.ie>
> wrote:
>
>> Hi,
>>
>> You can do this, but it requires a few steps. Open up the Project where
>> the Layers are and they are all styled as you want
>>
>>
>>
>> *STEP1 Convert all to KMZ*
>>
>> 1. In the *Processing Tools *under* GDAL, Vector Conversion *highlight
>> *Convert format *right click and select* Execute as Batch Process*
>>
>> 2. Click the* + *symbol to add additional rows and select the
>> Layers you want to convert
>>
>> 3. Click on the three dots on the right for the first layer, set
>> the Save as type to KML set a location and in the file name we are just
>> going to give it a prefix, type something like 01_ then click save
>>
>> 4. You will then be presented with the *AutoFill* option, set the *Autofill
>> mode* to *Fill with parameter values* and set the *Parameter to use* to *Input
>> Layer*, at this stage you can delete the prefix manually if you wish
>>
>> 5. Click Run
>>
>> This should have saved out all Shapefiles as KML’s for you. Now for the
>> Styling and fixing of styles
>>
>>
>>
>> *STEP2 Apply Styles to KML*
>>
>> 1. Right click on one of the original Layers in your project,
>> select *Styles, Copy Style, All Style Categories*
>>
>> 2. Right click on the corresponding KML select *Styles, Paste
>> Style, All Style Categories*
>>
>> Repeat for all other Layers
>>
>>
>>
>> *STEP3 Final Step*
>>
>> 1. In the Search baron the Processing Toolbox search for *Package
>> Layers*
>>
>> 2. Select the *KML* Files as your *Input Layers*
>>
>> 3. Make sure the* Save layer Styles into GeoPackage *
>>
>> 4. Click on the three dots at *Destination GeoPackage*, selecting *Save
>> to File*, set the Location and Name of the GeoPackage, click *Save* and
>> then click *Run*
>>
>>
>>
>> The result will be a GeoPackage file with the KML’s saved and the Styles
>> applied, which means that anyone who opens the GeoPackage in another QGIS
>> Project will always have the Styles applied.
>>
>>
>>
>> I don’t believe there is an automated process that will do this for you,
>> but you could also look at the model builder and using the steps above as a
>> guide, build a custom process which will do the three steps I have outlined
>> above in a single step for you.
>>
>> Hope that helps,
>>
>>
>>
>> Richard McDonnell
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> ——
>> Richard McDonnell MSc GIS, FME Certified Professional
>> *FRM Data Management*
>>
>> ——
>> Oifig na nOibreacha Poiblí
>> Office of Public Works
>>
>> Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
>> Jonathan Swift Street, Trim, Co Meath, C15 NX36
>> ——
>> M +353 87 688 5964 T +353 46 942 2409
>> https://gov.ie/opw
>>
>> ——
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>> https://filetransfer.opw.ie/filedrop/richard.mcdonnell@opw.ie
>>
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>>
>> *From:* Qgis-user <qgis-user-bounces at lists.osgeo.org> *On Behalf Of *krishna
>> Ayyala
>> *Sent:* 13 August 2021 14:06
>> *To:* qgis-user <qgis-user at lists.osgeo.org>
>> *Subject:* [Qgis-user] Exporting QGIS map to KML/KMZ
>>
>>
>>
>> Hello,
>>
>> I am reposting this question. I have a QGIS map saved
>> with ".qgz" extension. This map has four layers. One layer has points, one
>> layer has lines and two layers have polygons. Is it possible to convert the
>> entire map to kmz without losing the symbology. I know how to convert each
>> layer into kmz. But, I am exploring to see if I can convert the entire map
>> to kmz?
>>
>>
>>
>> Regards.
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