Re: [Qgis-user] Isochrones

[Márcio Midon]

Hi PedroHow can i download the slides that you shared with us?

Best regards.

Marcio Midon.

Em 26/05/2020 20:03, Pedro Venâncio escreveu:

Hi,

Besides Ujaval suggestions, you have also:

- Hqgis, using Here API:
https://plugins.qgis.org/plugins/Hqgis/

- v.net.* algorithms from GRASS, inside Processing, if you have your 
own network:

https://grass.osgeo.org/grass78/manuals/v.net.html
Some examples here (unfortunately only in Portuguese):
https://pt.slideshare.net/mobile/PedroNGV/anlise-de-redes-com-qgis


Best regards,
Pedro


A terça, 26/05/2020, 23:44, Ujaval Gandhi > escreveu:


Yes! If you have your own network data, QNEAT3 plugin has Iso-Area
algorithms. Otherwise, the ORS Tools plugin allows you to create
isochrones using OpenStreetMap data

http://www.qgistutorials.com/en/docs/3/service_area_analysis.html

Ujaval Gandhi
Spatial Thoughts

On Wed, May 27, 2020, 3:54 AM Riccardo D'Alvito
mailto:r.cho...@hotmail.com>> wrote:

Hi!

I would like to know is there is a way to create isochorones
(for instance - 5 minutes) on QGIS starting from a point and
following a road network with a certain speed.

Thank you.
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--

Cordialmente,

*Márcio Midon*Arquiteto e Urbanista UFPel Especialista Geoprocessamento UFPR Mestre 
Geomática UFSM Tel 53 3305 7075 | Cel 53 98100 2020 SKYPE marcio_midon


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Re: [Qgis-user] Isochrones

[Pedro Venâncio]

Hi,

Besides Ujaval suggestions, you have also:

- Hqgis, using Here API:
https://plugins.qgis.org/plugins/Hqgis/

- v.net.* algorithms from GRASS, inside Processing, if you have your own
network:
https://grass.osgeo.org/grass78/manuals/v.net.html
Some examples here (unfortunately only in Portuguese):
https://pt.slideshare.net/mobile/PedroNGV/anlise-de-redes-com-qgis


Best regards,
Pedro


A terça, 26/05/2020, 23:44, Ujaval Gandhi 
escreveu:

> Yes! If you have your own network data, QNEAT3 plugin has Iso-Area
> algorithms. Otherwise, the ORS Tools plugin allows you to create isochrones
> using OpenStreetMap data
>
> http://www.qgistutorials.com/en/docs/3/service_area_analysis.html
>
> Ujaval Gandhi
> Spatial Thoughts
>
> On Wed, May 27, 2020, 3:54 AM Riccardo D'Alvito 
> wrote:
>
>> Hi!
>>
>> I would like to know is there is a way to create isochorones (for
>> instance - 5 minutes) on QGIS starting from a point and following a road
>> network with a certain speed.
>>
>> Thank you.
>> ___
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Re: [Qgis-user] Isochrones

[Ujaval Gandhi]

Yes! If you have your own network data, QNEAT3 plugin has Iso-Area
algorithms. Otherwise, the ORS Tools plugin allows you to create isochrones
using OpenStreetMap data

http://www.qgistutorials.com/en/docs/3/service_area_analysis.html

Ujaval Gandhi
Spatial Thoughts

On Wed, May 27, 2020, 3:54 AM Riccardo D'Alvito 
wrote:

> Hi!
>
> I would like to know is there is a way to create isochorones (for instance
> - 5 minutes) on QGIS starting from a point and following a road network
> with a certain speed.
>
> Thank you.
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
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> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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[Qgis-user] Isochrones

[Riccardo D'Alvito]

Hi!

I would like to know is there is a way to create isochorones (for instance - 5 
minutes) on QGIS starting from a point and following a road network with a 
certain speed.

Thank you.
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Re: [Qgis-user] Isochrones

[Jeff McKenna]

I've sent an email to Osahon that their email account seems to be 
compromised (sending Spam to qgis-user and gdal-dev), before I 
unsubscribe their address I will await the response first.


-jeff




--
Jeff McKenna
MapServer Consulting and Training Services
https://gatewaygeomatics.com/




On 2020-03-30 10:32 a.m., Osahon Oduware wrote:

**Copy links to browser address bar if they are not opening upon click:
LEAH SHARIBU, 2 YEARS AFTER:
https://www.docdroid.net/fWQ480p/leah-sharibu-2-years-after.pdf

BE WISE AS SERPENTS (Facebook Page Link):
https://m.facebook.com/story.php?story_fbid=10223074657920398=1399351130


On Mar 25, 2020 15:22, "Tyler Veinot" > wrote:


All;
I have a network, Canada National Road Network it is a free
download, that I am trying to use for PEI and the City of
Charlottetown to find out what area is within X time of various
points of interest. I used Here for QGIS to get the initial result
but QGIS has a tool built in Network Analyst that has Service Area
from Network and from Point, also and QNEAT that has 6 isochrone
tools for doing exactly what I am trying to do. For some reason
though the results don't seem to match the network. I would expect
the from the point of origin the shortest times to be along the
lines and radiate out.
What tools are you guys using to do this kind of work? Do my values
for forward backward both direction need to be numeric? Any
tutorials on using these tools?
Thanks;
Tyler

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Re: [Qgis-user] Isochrones

[Osahon Oduware]

**Copy links to browser address bar if they are not opening upon click:
LEAH SHARIBU, 2 YEARS AFTER:
https://www.docdroid.net/fWQ480p/leah-sharibu-2-years-after.pdf

BE WISE AS SERPENTS (Facebook Page Link):
https://m.facebook.com/story.php?story_fbid=10223074657920398=1399351130


On Mar 25, 2020 15:22, "Tyler Veinot"  wrote:

> All;
> I have a network, Canada National Road Network it is a free download, that
> I am trying to use for PEI and the City of Charlottetown to find out what
> area is within X time of various points of interest. I used Here for QGIS
> to get the initial result but QGIS has a tool built in Network Analyst that
> has Service Area from Network and from Point, also and QNEAT that has 6
> isochrone tools for doing exactly what I am trying to do. For some reason
> though the results don't seem to match the network. I would expect the from
> the point of origin the shortest times to be along the lines and radiate
> out.
> What tools are you guys using to do this kind of work? Do my values for
> forward backward both direction need to be numeric? Any tutorials on using
> these tools?
> Thanks;
> Tyler
>
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Re: [Qgis-user] Isochrones

[Tyler Veinot]

All;
It isn't the networ because the tool works fine when I interpolate the
results as points instead of a raster.
I think it is in how it bulbs the tin, I will have to do more checking.
Thanks;
Tyler

On Wed, 25 Mar 2020 at 17:27, kirk  wrote:

> Nicolas is right. There is  good chance the topology is a bit messed up.
> You can spend Lot of time fixing it up so I would suggest downloading the
> gis basmap layers from the pei government website. There us a large scale
> database for Charlottetown  (1:2000) that will work better for you. Just
> search gis database pei.
> Kirk
>
>
>
> Sent from my Samsung Galaxy smartphone.
>
>  Original message 
> From: Nicolas Cadieux 
> Date: 2020-03-25 12:35 PM (GMT-04:00)
> To: Tyler Veinot 
> Cc: QGIS User List 
> Subject: Re: [Qgis-user] Isochrones
>
> Hi,
>
> The first thing I would do is to check the network integrity.  Perhaps
> some road are not connected (snapped).  You also need a snap and break at
> every intersection. You can do some of this by exporting all the end node.
> Check for multiline vs lines. You can split all of those in the vector
> menu.  Your problems are likely linked to a bad network topology. Users of
> that network could perhaps confirm this? I have used it but not for this
> type of stuff.
>
> Nicolas Cadieux
>
> > Le 25 mars 2020 à 10:22, Tyler Veinot  a écrit :
> >
> > 
> > All;
> > I have a network, Canada National Road Network it is a free download,
> that I am trying to use for PEI and the City of Charlottetown to find out
> what area is within X time of various points of interest. I used Here for
> QGIS to get the initial result but QGIS has a tool built in Network Analyst
> that has Service Area from Network and from Point, also and QNEAT that has
> 6 isochrone tools for doing exactly what I am trying to do. For some reason
> though the results don't seem to match the network. I would expect the from
> the point of origin the shortest times to be along the lines and radiate
> out.
> > What tools are you guys using to do this kind of work? Do my values for
> forward backward both direction need to be numeric? Any tutorials on using
> these tools?
> > Thanks;
> > Tyler
> > ___
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> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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Re: [Qgis-user] Isochrones

[kirk]

Nicolas is right. There is  good chance the topology is a bit messed up. You 
can spend Lot of time fixing it up so I would suggest downloading the gis 
basmap layers from the pei government website. There us a large scale database 
for Charlottetown  (1:2000) that will work better for you. Just search gis 
database pei.KirkSent from my Samsung Galaxy smartphone.
 Original message From: Nicolas Cadieux 
 Date: 2020-03-25  12:35 PM  (GMT-04:00) To: 
Tyler Veinot  Cc: QGIS User List 
 Subject: Re: [Qgis-user] Isochrones Hi,The first 
thing I would do is to check the network integrity.  Perhaps some road are not 
connected (snapped).  You also need a snap and break at every intersection. You 
can do some of this by exporting all the end node. Check for multiline vs 
lines. You can split all of those in the vector menu.  Your problems are likely 
linked to a bad network topology. Users of that network could perhaps confirm 
this? I have used it but not for this type of stuff.Nicolas Cadieux> Le 25 mars 
2020 à 10:22, Tyler Veinot  a écrit :> > > All;> I 
have a network, Canada National Road Network it is a free download, that I am 
trying to use for PEI and the City of Charlottetown to find out what area is 
within X time of various points of interest. I used Here for QGIS to get the 
initial result but QGIS has a tool built in Network Analyst that has Service 
Area from Network and from Point, also and QNEAT that has 6 isochrone tools for 
doing exactly what I am trying to do. For some reason though the results don't 
seem to match the network. I would expect the from the point of origin the 
shortest times to be along the lines and radiate out. > What tools are you guys 
using to do this kind of work? Do my values for forward backward both direction 
need to be numeric? Any tutorials on using these tools?> Thanks;> Tyler> 
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Re: [Qgis-user] Isochrones

[Ujaval Gandhi]

Hi Tyler,

I have step-by-step tutorials for using the built-in network analysis
tools, QNEAT3 and ORS Tools plugins that show how to setup and use them. Do
have a look and see if you can make it work for your dataset.

*Basic Network Visualization and Routing (QGIS3)*

*Locating Nearest Facility with Origin-Destination Matrix (QGIS3)*

*Service Area Analysis using Openrouteservice (QGIS3)*

[image: Logo] 
Ujaval Gandhi
Spatial Thoughts
mobile: +91-8095684687
email: uja...@spatialthoughts.com
[image: LinkedIn icon]   [image:
Twitter icon] 
Subscribe to our newsletter http://bit.ly/spatialthoughts-newsletter


On Wed, Mar 25, 2020 at 9:05 PM Nicolas Cadieux <
nicolas.cadi...@archeotec.ca> wrote:

> Hi,
>
> The first thing I would do is to check the network integrity.  Perhaps
> some road are not connected (snapped).  You also need a snap and break at
> every intersection. You can do some of this by exporting all the end node.
> Check for multiline vs lines. You can split all of those in the vector
> menu.  Your problems are likely linked to a bad network topology. Users of
> that network could perhaps confirm this? I have used it but not for this
> type of stuff.
>
> Nicolas Cadieux
>
> > Le 25 mars 2020 à 10:22, Tyler Veinot  a écrit :
> >
> > 
> > All;
> > I have a network, Canada National Road Network it is a free download,
> that I am trying to use for PEI and the City of Charlottetown to find out
> what area is within X time of various points of interest. I used Here for
> QGIS to get the initial result but QGIS has a tool built in Network Analyst
> that has Service Area from Network and from Point, also and QNEAT that has
> 6 isochrone tools for doing exactly what I am trying to do. For some reason
> though the results don't seem to match the network. I would expect the from
> the point of origin the shortest times to be along the lines and radiate
> out.
> > What tools are you guys using to do this kind of work? Do my values for
> forward backward both direction need to be numeric? Any tutorials on using
> these tools?
> > Thanks;
> > Tyler
> > ___
> > Qgis-user mailing list
> > Qgis-user@lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
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Re: [Qgis-user] Isochrones

[Nicolas Cadieux]

Hi,

The first thing I would do is to check the network integrity.  Perhaps some 
road are not connected (snapped).  You also need a snap and break at every 
intersection. You can do some of this by exporting all the end node. Check for 
multiline vs lines. You can split all of those in the vector menu.  Your 
problems are likely linked to a bad network topology. Users of that network 
could perhaps confirm this? I have used it but not for this type of stuff.

Nicolas Cadieux

> Le 25 mars 2020 à 10:22, Tyler Veinot  a écrit :
> 
> 
> All;
> I have a network, Canada National Road Network it is a free download, that I 
> am trying to use for PEI and the City of Charlottetown to find out what area 
> is within X time of various points of interest. I used Here for QGIS to get 
> the initial result but QGIS has a tool built in Network Analyst that has 
> Service Area from Network and from Point, also and QNEAT that has 6 isochrone 
> tools for doing exactly what I am trying to do. For some reason though the 
> results don't seem to match the network. I would expect the from the point of 
> origin the shortest times to be along the lines and radiate out. 
> What tools are you guys using to do this kind of work? Do my values for 
> forward backward both direction need to be numeric? Any tutorials on using 
> these tools?
> Thanks;
> Tyler
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[Qgis-user] Isochrones

[Tyler Veinot]

All;
I have a network, Canada National Road Network it is a free download, that
I am trying to use for PEI and the City of Charlottetown to find out what
area is within X time of various points of interest. I used Here for QGIS
to get the initial result but QGIS has a tool built in Network Analyst that
has Service Area from Network and from Point, also and QNEAT that has 6
isochrone tools for doing exactly what I am trying to do. For some reason
though the results don't seem to match the network. I would expect the from
the point of origin the shortest times to be along the lines and radiate
out.
What tools are you guys using to do this kind of work? Do my values for
forward backward both direction need to be numeric? Any tutorials on using
these tools?
Thanks;
Tyler
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