Re: [Qgis-user] Volume calculation - Reg
Just tried a few datasets in 3d faces and they triangulate beautifully in 3.16. For some reason need to import from dwg instead of dxf, or re-export to gpkg before the tool will let me use the intrinsic z data, but really works very nicely. Michael Dufty From: Qgis-user On Behalf Of Kirk Schmidt Sent: Friday, 18 December 2020 9:41 PM To: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Volume calculation - Reg Hi Mike: I usually convert the contours or breaklines into a point layer and then generate a dem from that. This is not a precise methodology but it would depend on what you are trying to do and the precision of the underlying data. Kirk Schmidt ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Volume calculation - Reg
Excellent, I hadn’t tried it since 3.16, will try again. Unfortunately the problem with using interpolation in model builder still seems like it might be difficult to fix. https://github.com/qgis/QGIS/issues/30029 Michael Dufty From: Vincent Cloarec Sent: Friday, 18 December 2020 9:55 PM To: Michael Dufty Cc: Nicolas Cadieux ; Abhi Shek ; qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Volume calculation - Reg TIN interpolation was improved in the 3.16 release. Quite crashes were fixed. Please, report any issues in github. Regards. Vincent. Le ven. 18 déc. 2020 à 05:29, Michael Dufty mailto:mdu...@mbsenvironmental.com.au>> a écrit : The links for Nicolas are quite useful, but I think to create a raster DEM from vector lines you probably need to use the interpolate triangulation with breaklines or structure lines. The dialogue takes a bit of getting used to, you need to choose the layer the data will come from, click + then in the box below choose whether the layer is being used for points, breaklines or structure lines. I’ve had major issues with the interpolation crashing QGIS if I try to used it with breaklines for complex imported data, but it seems to work OK for simple test geometries, and may be good for a simple excavation. I’d be interested to know if anyone has had success with interpolation using breaklines for more complex data, I’ve had to resort to other software trying to import DEM supplied as dxf 3d faces, but maybe I’m missing a basic step like fixing geometry or removing duplicates. From: Qgis-user mailto:qgis-user-boun...@lists.osgeo.org>> On Behalf Of Nicolas Cadieux Sent: Friday, 18 December 2020 12:04 AM To: Abhi Shek mailto:psn.abhis...@gmail.com>> Cc: qgis-user@lists.osgeo.org<mailto:qgis-user@lists.osgeo.org> Subject: Re: [Qgis-user] Volume calculation - Reg This should help https://youtu.be/EerXfUf-aHo https://www.pointsnorthgis.ca/blog/how-to-calculate-surfacecut-volume-qgis-advanced/ Nicolas Cadieux https://gitlab.com/njacadieux Le 17 déc. 2020 à 04:57, Abhi Shek mailto:psn.abhis...@gmail.com>> a écrit : Sir, I invite your kind attention to the above subject. I am a beginner in qgis. I want to create a raster DEM using Vector Lines. In a nutshell, I want to calculate the planned excavated volume. please guide me in this matter. -- with warm regards, P S N Abhishek, ___ Qgis-user mailing list Qgis-user@lists.osgeo.org<mailto:Qgis-user@lists.osgeo.org> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org<mailto:Qgis-user@lists.osgeo.org> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Volume calculation - Reg
TIN interpolation was improved in the 3.16 release. Quite crashes were fixed. Please, report any issues in github. Regards. Vincent. Le ven. 18 déc. 2020 à 05:29, Michael Dufty a écrit : > The links for Nicolas are quite useful, but I think to create a raster DEM > from vector lines you probably need to use the interpolate triangulation > with breaklines or structure lines. > > The dialogue takes a bit of getting used to, you need to choose the layer > the data will come from, click + then in the box below choose whether the > layer is being used for points, breaklines or structure lines. > > > > I’ve had major issues with the interpolation crashing QGIS if I try to > used it with breaklines for complex imported data, but it seems to work OK > for simple test geometries, and may be good for a simple excavation. > > > > I’d be interested to know if anyone has had success with interpolation > using breaklines for more complex data, I’ve had to resort to other > software trying to import DEM supplied as dxf 3d faces, but maybe I’m > missing a basic step like fixing geometry or removing duplicates. > > > > *From:* Qgis-user *On Behalf Of *Nicolas > Cadieux > *Sent:* Friday, 18 December 2020 12:04 AM > *To:* Abhi Shek > *Cc:* qgis-user@lists.osgeo.org > *Subject:* Re: [Qgis-user] Volume calculation - Reg > > > > This should help > > > > https://youtu.be/EerXfUf-aHo > > > > > https://www.pointsnorthgis.ca/blog/how-to-calculate-surfacecut-volume-qgis-advanced/ > > Nicolas Cadieux > > https://gitlab.com/njacadieux > > > > Le 17 déc. 2020 à 04:57, Abhi Shek a écrit : > > > > Sir, > > I invite your kind attention to the above subject. I am a beginner in qgis. > > I want to create a raster DEM using Vector Lines. > > In a nutshell, I want to calculate the planned excavated volume. > > please guide me in this matter. > > > > -- > > with warm regards, > P S N Abhishek, > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Volume calculation - Reg
Hi Mike: I usually convert the contours or breaklines into a point layer and then generate a dem from that. This is not a precise methodology but it would depend on what you are trying to do and the precision of the underlying data. Kirk Schmidt On 12/18/2020 5:28 AM, Michael Dufty wrote: The links for Nicolas are quite useful, but I think to create a raster DEM from vector lines you probably need to use the interpolate triangulation with breaklines or structure lines. The dialogue takes a bit of getting used to, you need to choose the layer the data will come from, click + then in the box below choose whether the layer is being used for points, breaklines or structure lines. I’ve had major issues with the interpolation crashing QGIS if I try to used it with breaklines for complex imported data, but it seems to work OK for simple test geometries, and may be good for a simple excavation. I’d be interested to know if anyone has had success with interpolation using breaklines for more complex data, I’ve had to resort to other software trying to import DEM supplied as dxf 3d faces, but maybe I’m missing a basic step like fixing geometry or removing duplicates. *From:*Qgis-user *On Behalf Of *Nicolas Cadieux *Sent:* Friday, 18 December 2020 12:04 AM *To:* Abhi Shek *Cc:* qgis-user@lists.osgeo.org *Subject:* Re: [Qgis-user] Volume calculation - Reg This should help https://youtu.be/EerXfUf-aHo <https://youtu.be/EerXfUf-aHo> https://www.pointsnorthgis.ca/blog/how-to-calculate-surfacecut-volume-qgis-advanced/ <https://www.pointsnorthgis.ca/blog/how-to-calculate-surfacecut-volume-qgis-advanced/> Nicolas Cadieux https://gitlab.com/njacadieux <https://gitlab.com/njacadieux> Le 17 déc. 2020 à 04:57, Abhi Shek mailto:psn.abhis...@gmail.com>> a écrit : Sir, I invite your kind attention to the above subject. I am a beginner in qgis. I want to create a raster DEM using Vector Lines. In a nutshell, I want to calculate the planned excavated volume. please guide me in this matter. -- with warm regards, P S N Abhishek, ___ Qgis-user mailing list Qgis-user@lists.osgeo.org <mailto:Qgis-user@lists.osgeo.org> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user <https://lists.osgeo.org/mailman/listinfo/qgis-user> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user <https://lists.osgeo.org/mailman/listinfo/qgis-user> ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user -- Kirk Schmidt, MScF, BScF, RPF General Manager Nortek Resource Solutions Inc. RR # 1 Thorburn, NS B0K 1W0 Tel (902) 922.3607 Email: k...@nortekresources.com Web: www.nortekresources.com ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Volume calculation - Reg
This should help https://youtu.be/EerXfUf-aHo https://www.pointsnorthgis.ca/blog/how-to-calculate-surfacecut-volume-qgis-advanced/ Nicolas Cadieux https://gitlab.com/njacadieux > Le 17 déc. 2020 à 04:57, Abhi Shek a écrit : > > > Sir, > I invite your kind attention to the above subject. I am a beginner in qgis. > I want to create a raster DEM using Vector Lines. > In a nutshell, I want to calculate the planned excavated volume. > please guide me in this matter. > > -- > with warm regards, > P S N Abhishek, > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Volume calculation - Reg
Sir, I invite your kind attention to the above subject. I am a beginner in qgis. I want to create a raster DEM using Vector Lines. In a nutshell, I want to calculate the planned excavated volume. please guide me in this matter. -- with warm regards, P S N Abhishek, ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
