Size limitation of generalizer to shapefile limits?

[newcomb-d]

Hi,
I tried generalizing a large vector data set ( 7.5 gb geopackage layer, more than 37,000,000 verticies) . I was trying to read from and out put to a geopackage layer, but got an error that it could not write to a shapefile output. I assume that the plugin does not scale to geometries that are larger than shapefiles can handle?

[dtutic]

Hello, Thank you for that info. It uses OGR for reading/writing shapefiles, so I guess limitations are related to it. Best, Drazen Get Outlook for Android<https://aka.ms/ghei36>

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________________________________ From: Doug Newcomb <notifications@github.com> Sent: Monday, January 27, 2020 4:28:04 PM To: GEOF-OSGL/CartoLineGen <CartoLineGen@noreply.github.com> Cc: Subscribed <subscribed@noreply.github.com> Subject: [GEOF-OSGL/CartoLineGen] Size limitation of generalizer to shapefile limits? (#3) Hi, I tried generalizing a large vector data set ( 7.5 gb geopackage layer, more than 37,000,000 verticies) . I was trying to read from and out put to a geopackage layer, but got an error that it could not write to a shapefile output. I assume that the plugin does not scale to geometries that are larger than shapefiles can handle? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<#3>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AD7EZOFSTHGT3WH7ZHQXXDDQ734QJANCNFSM4KMDGPQA>.

[newcomb-d]

Shapefile is the default output for OGR, but other options are available. I did not notice an option in the plugin to choose the output format. Would geopackage be a safer alternative? Doug

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On Mon, Jan 27, 2020 at 10:43 AM Dražen Tutić ***@***.***> wrote: Hello, Thank you for that info. It uses OGR for reading/writing shapefiles, so I guess limitations are related to it. Best, Drazen Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Doug Newcomb ***@***.***> Sent: Monday, January 27, 2020 4:28:04 PM To: GEOF-OSGL/CartoLineGen ***@***.***> Cc: Subscribed ***@***.***> Subject: [GEOF-OSGL/CartoLineGen] Size limitation of generalizer to shapefile limits? (#3) Hi, I tried generalizing a large vector data set ( 7.5 gb geopackage layer, more than 37,000,000 verticies) . I was trying to read from and out put to a geopackage layer, but got an error that it could not write to a shapefile output. I assume that the plugin does not scale to geometries that are larger than shapefiles can handle? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub< #3>, or unsubscribe< https://github.com/notifications/unsubscribe-auth/AD7EZOFSTHGT3WH7ZHQXXDDQ734QJANCNFSM4KMDGPQA >. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#3>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABSYN7VXGXI2LY5HCGKHWODQ736GPANCNFSM4KMDGPQA> .

-- Doug Newcomb - Cartographer USFWS 551F Pylon Dr Raleigh, NC 919-856-4520 ext. 14 doug_newcomb@fws.gov --------------------------------------------------------------------------------------------------------- *NOTE: This email correspondence and any attachments to and from this sender is subject to the Freedom of Information Act (FOIA) and may be disclosed to third parties.*​

[dtutic]

Have no expertise on that. You can try to modify code in generalize.py to use other format. Should work.

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________________________________ From: Doug Newcomb <notifications@github.com> Sent: Monday, January 27, 2020 4:47:01 PM To: GEOF-OSGL/CartoLineGen <CartoLineGen@noreply.github.com> Cc: Dražen Tutić <drazen.tutic@geof.unizg.hr>; Comment <comment@noreply.github.com> Subject: Re: [GEOF-OSGL/CartoLineGen] Size limitation of generalizer to shapefile limits? (#3) Shapefile is the default output for OGR, but other options are available. I did not notice an option in the plugin to choose the output format. Would geopackage be a safer alternative? Doug

On Mon, Jan 27, 2020 at 10:43 AM Dražen Tutić ***@***.***> wrote: Hello, Thank you for that info. It uses OGR for reading/writing shapefiles, so I guess limitations are related to it. Best, Drazen Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Doug Newcomb ***@***.***> Sent: Monday, January 27, 2020 4:28:04 PM To: GEOF-OSGL/CartoLineGen ***@***.***> Cc: Subscribed ***@***.***> Subject: [GEOF-OSGL/CartoLineGen] Size limitation of generalizer to shapefile limits? (#3) Hi, I tried generalizing a large vector data set ( 7.5 gb geopackage layer, more than 37,000,000 verticies) . I was trying to read from and out put to a geopackage layer, but got an error that it could not write to a shapefile output. I assume that the plugin does not scale to geometries that are larger than shapefiles can handle? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub< #3>, or unsubscribe< https://github.com/notifications/unsubscribe-auth/AD7EZOFSTHGT3WH7ZHQXXDDQ734QJANCNFSM4KMDGPQA >. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#3>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABSYN7VXGXI2LY5HCGKHWODQ736GPANCNFSM4KMDGPQA> .

-- Doug Newcomb - Cartographer USFWS 551F Pylon Dr Raleigh, NC 919-856-4520 ext. 14 doug_newcomb@fws.gov --------------------------------------------------------------------------------------------------------- *NOTE: This email correspondence and any attachments to and from this sender is subject to the Freedom of Information Act (FOIA) and may be disclosed to third parties.*​ — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#3>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AD7EZOFEZALA3ZCC6RTBNGTQ736XLANCNFSM4KMDGPQA>.