Re: [Qgis-user] Hot Spot Accumulation
Hi Gillen, As far as I know, the point cluster renderer outputs points according to cluster size and can be styled according to classes/rules. So it could do what you want - I think. Have you tried it? If you also want to see the individual points in addition - then just render the same layer twice: * once with indiviual points * and once with the clustered points (point size and colors according to nr of points in cluster) in the background Greetings, Andreas On 2018-09-27 15:47, GILLEN Finbar wrote: > Hi Andreas, > > The cluster renderer seems to dissolve points into 1 rather than create a > radius for each individual point. The output would be something like below > where I aggregate points within a certain radius, then I can highlight ones > that have the highest density. > > The heatmap plugin does something like this, but I would prefer the output > below if available. > > Regards > > Finbar > > FROM: Andreas Neumann > SENT: 27 September 2018 13:17 > TO: GILLEN Finbar > CC: Nicolas Cadieux ; qgis-user@lists.osgeo.org > SUBJECT: Re: [Qgis-user] Hot Spot Accumulation > > Hi Gillen, > > Perhaps you are looking for the cluster renderer? > > See > https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#point-cluster-renderer > [1] > > or > > https://anitagraser.com/2017/06/13/even-more-aggregations-qgis-point-cluster-renderer/ > [2] > > Greetings, > > Andreas > > On 2018-09-27 13:53, GILLEN Finbar wrote: > > Hi Nicolas, > > I checked that but it doesn't create a singular circle for each point. In > more dense areas it will merge the circles as one. > > I would be looking for an individual circle for each point. > > Regards > > Finbar > > FROM: Nicolas Cadieux > SENT: 27 September 2018 12:51 > TO: GILLEN Finbar > CC: qgis-user@lists.osgeo.org > SUBJECT: Re: [Qgis-user] Hot Spot Accumulation > > Hi, > > I believe heat map will do that. You can use weight from field. > > http://www.qgistutorials.com/fr/docs/creating_heatmaps.html [3] > > Nicolas > > Le 27 sept. 2018 à 07:42, GILLEN Finbar a écrit : > > Hi All, > > Is there a plugin or tool within QGIS that creates a hotspot for each > individual point in a dataset and assigns a score based on the amount of > points that fall within a given radius, say 200 metres (See image below)? > > > > I would be looking to weight the score with a variable within the dataset to. > > Regards > > Finbar > > * > > The contents and any attachments of this electronic mail message are > confidential and intended only for the named addressees. Dissemination, > forwarding, publication or other use of the message or attachments by any > unauthorised person is strictly prohibited. > > Unless stated to the contrary, any opinions expressed in this message are > personal and may not be attributed to AXA Insurance dac or any member of the > AXA Group of Companies. > > AXA Insurance dac is regulated by the Central Bank of Ireland. For business > in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of > Ireland and subject to limited regulation by the Financial Conduct Authority. > Details about the extent of our regulation by the Financial Conduct Authority > are available from us on request. AXA Insurance dac is a private company > limited by shares, registered in Ireland number 136155. Registered Office > Wolfe Tone House, Wolfe Tone Street, Dublin 1. > > "AXA Supporting Road Safety in Ireland" > > Internet e-mails are not necessarily secure. AXA Group does not accept > responsibility for changes made to this message after it was sent. To help > promote the use of electronic documents and to be kinder to the environment, > please consider whether you really need to print this > email. > > * > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user [4] > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user [4] > > * > > The contents and any attachments of this electronic mail message are > confidential and intended only for the named addressees. Dissemination, > forwarding, publication or other use of the message or attachments by any > unauthorised person is strictly prohibited. > > Unless
Re: [Qgis-user] Hot Spot Accumulation
For circles of a specific size, one per input data point you'll need to build your own using tools from the Processing toolbox: 1. Use the Buffer tool on the input points to 200m to create the circles 2. Use the Join attributes by location tool to attribute the circles with counts and / or weighted counts of the input points falling within each. Cheers, Andy On 27/09/2018 12:53, GILLEN Finbar wrote: Hi Nicolas, I checked that but it doesn’t create a singular circle for each point. In more dense areas it will merge the circles as one. I would be looking for an individual circle for each point. Regards Finbar *From:* Nicolas Cadieux *Sent:* 27 September 2018 12:51 *To:* GILLEN Finbar *Cc:* qgis-user@lists.osgeo.org *Subject:* Re: [Qgis-user] Hot Spot Accumulation Hi, I believe heat map will do that. You can use weight from field. http://www.qgistutorials.com/fr/docs/creating_heatmaps.html Nicolas Le 27 sept. 2018 à 07:42, GILLEN Finbar <mailto:finbar.gil...@axa.ie>> a écrit : Hi All, Is there a plugin or tool within QGIS that creates a hotspot for each individual point in a dataset and assigns a score based on the amount of points that fall within a given radius, say 200 metres (See image below)? I would be looking to weight the score with a variable within the dataset to. Regards Finbar * The contents and any attachments of this electronic mail message are confidential and intended only for the named addressees. Dissemination, forwarding, publication or other use of the message or attachments by any unauthorised person is strictly prohibited. Unless stated to the contrary, any opinions expressed in this message are personal and may not be attributed to AXA Insurance dac or any member of the AXA Group of Companies. AXA Insurance dac is regulated by the Central Bank of Ireland. For business in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of Ireland and subject to limited regulation by the Financial Conduct Authority. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request. AXA Insurance dac is a private company limited by shares, registered in Ireland number 136155. Registered Office Wolfe Tone House, Wolfe Tone Street, Dublin 1. "AXA Supporting Road Safety in Ireland" Internet e-mails are not necessarily secure. AXA Group does not accept responsibility for changes made to this message after it was sent. To help promote the use of electronic documents and to be kinder to the environment, please consider whether you really need to print this email. * ___ 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 * The contents and any attachments of this electronic mail message are confidential and intended only for the named addressees. Dissemination, forwarding, publication or other use of the message or attachments by any unauthorised person is strictly prohibited. Unless stated to the contrary, any opinions expressed in this message are personal and may not be attributed to AXA Insurance dac or any member of the AXA Group of Companies. AXA Insurance dac is regulated by the Central Bank of Ireland. For business in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of Ireland and subject to limited regulation by the Financial Conduct Authority. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request. AXA Insurance dac is a private company limited by shares, registered in Ireland number 136155. Registered Office Wolfe Tone House, Wolfe Tone Street, Dublin 1. "AXA Supporting Road Safety in Ireland" Internet e-mails are not necessarily secure. AXA Group does not accept responsibility for changes made to this message after it was sent. To help promote the use of electronic documents and to be kinder to the environment, please consider whether you really need to print this email. * ___ 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 -- Andy Harfoot GeoData Institute University of Southampton Southampton SO17 1BJ Tel: +44 (0)23
Re: [Qgis-user] Hot Spot Accumulation
Hi Gillen, Perhaps you are looking for the cluster renderer? See https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#point-cluster-renderer or https://anitagraser.com/2017/06/13/even-more-aggregations-qgis-point-cluster-renderer/ Greetings, Andreas On 2018-09-27 13:53, GILLEN Finbar wrote: > Hi Nicolas, > > I checked that but it doesn't create a singular circle for each point. In > more dense areas it will merge the circles as one. > > I would be looking for an individual circle for each point. > > Regards > > Finbar > > FROM: Nicolas Cadieux > SENT: 27 September 2018 12:51 > TO: GILLEN Finbar > CC: qgis-user@lists.osgeo.org > SUBJECT: Re: [Qgis-user] Hot Spot Accumulation > > Hi, > > I believe heat map will do that. You can use weight from field. > > http://www.qgistutorials.com/fr/docs/creating_heatmaps.html > > Nicolas > > Le 27 sept. 2018 à 07:42, GILLEN Finbar a écrit : > >> Hi All, >> >> Is there a plugin or tool within QGIS that creates a hotspot for each >> individual point in a dataset and assigns a score based on the amount of >> points that fall within a given radius, say 200 metres (See image below)? >> >> >> >> I would be looking to weight the score with a variable within the dataset >> to. >> >> Regards >> >> Finbar >> >> * >> >> The contents and any attachments of this electronic mail message are >> confidential and intended only for the named addressees. Dissemination, >> forwarding, publication or other use of the message or attachments by any >> unauthorised person is strictly prohibited. >> >> Unless stated to the contrary, any opinions expressed in this message are >> personal and may not be attributed to AXA Insurance dac or any member of the >> AXA Group of Companies. >> >> AXA Insurance dac is regulated by the Central Bank of Ireland. For business >> in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of >> Ireland and subject to limited regulation by the Financial Conduct >> Authority. Details about the extent of our regulation by the Financial >> Conduct Authority are available from us on request. AXA Insurance dac is a >> private company limited by shares, registered in Ireland number 136155. >> Registered Office Wolfe Tone House, Wolfe Tone Street, Dublin 1. >> >> "AXA Supporting Road Safety in Ireland" >> >> Internet e-mails are not necessarily secure. AXA Group does not accept >> responsibility for changes made to this message after it was sent. To help >> promote the use of electronic documents and to be kinder to the environment, >> please consider whether you really need to print this >> email. >> >> * > >> ___ >> 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 > > * > > The contents and any attachments of this electronic mail message are > confidential and intended only for the named addressees. Dissemination, > forwarding, publication or other use of the message or attachments by any > unauthorised person is strictly prohibited. > > Unless stated to the contrary, any opinions expressed in this message are > personal and may not be attributed to AXA Insurance dac or any member of the > AXA Group of Companies. > > AXA Insurance dac is regulated by the Central Bank of Ireland. For business > in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of > Ireland and subject to limited regulation by the Financial Conduct Authority. > Details about the extent of our regulation by the Financial Conduct Authority > are available from us on request. AXA Insurance dac is a private company > limited by shares, registered in Ireland number 136155. Registered Office > Wolfe Tone House, Wolfe Tone Street, Dublin 1. > > "AXA Supporting Road Safety in Ireland" > > Internet e-mails are not necessarily secure. AXA Group does not accept > responsibility for changes made to this message after it was sent. To help > promote the use of electronic documents and to be kinder to the environment, > please consider whether you really need to print this > email. > > *
Re: [Qgis-user] Hot Spot Accumulation
Hi Nicolas, I checked that but it doesn’t create a singular circle for each point. In more dense areas it will merge the circles as one. I would be looking for an individual circle for each point. Regards Finbar From: Nicolas Cadieux Sent: 27 September 2018 12:51 To: GILLEN Finbar Cc: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Hot Spot Accumulation Hi, I believe heat map will do that. You can use weight from field. http://www.qgistutorials.com/fr/docs/creating_heatmaps.html Nicolas Le 27 sept. 2018 à 07:42, GILLEN Finbar mailto:finbar.gil...@axa.ie>> a écrit : Hi All, Is there a plugin or tool within QGIS that creates a hotspot for each individual point in a dataset and assigns a score based on the amount of points that fall within a given radius, say 200 metres (See image below)? I would be looking to weight the score with a variable within the dataset to. Regards Finbar * The contents and any attachments of this electronic mail message are confidential and intended only for the named addressees. Dissemination, forwarding, publication or other use of the message or attachments by any unauthorised person is strictly prohibited. Unless stated to the contrary, any opinions expressed in this message are personal and may not be attributed to AXA Insurance dac or any member of the AXA Group of Companies. AXA Insurance dac is regulated by the Central Bank of Ireland. For business in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of Ireland and subject to limited regulation by the Financial Conduct Authority. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request. AXA Insurance dac is a private company limited by shares, registered in Ireland number 136155. Registered Office Wolfe Tone House, Wolfe Tone Street, Dublin 1. "AXA Supporting Road Safety in Ireland" Internet e-mails are not necessarily secure. AXA Group does not accept responsibility for changes made to this message after it was sent. To help promote the use of electronic documents and to be kinder to the environment, please consider whether you really need to print this email. * ___ 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 * The contents and any attachments of this electronic mail message are confidential and intended only for the named addressees. Dissemination, forwarding, publication or other use of the message or attachments by any unauthorised person is strictly prohibited. Unless stated to the contrary, any opinions expressed in this message are personal and may not be attributed to AXA Insurance dac or any member of the AXA Group of Companies. AXA Insurance dac is regulated by the Central Bank of Ireland. For business in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of Ireland and subject to limited regulation by the Financial Conduct Authority. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request. AXA Insurance dac is a private company limited by shares, registered in Ireland number 136155. Registered Office Wolfe Tone House, Wolfe Tone Street, Dublin 1. "AXA Supporting Road Safety in Ireland" Internet e-mails are not necessarily secure. AXA Group does not accept responsibility for changes made to this message after it was sent. To help promote the use of electronic documents and to be kinder to the environment, please consider whether you really need to print this email. * ___ 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] Hot Spot Accumulation
Hi, I believe heat map will do that. You can use weight from field. http://www.qgistutorials.com/fr/docs/creating_heatmaps.html Nicolas > Le 27 sept. 2018 à 07:42, GILLEN Finbar a écrit : > > Hi All, > > Is there a plugin or tool within QGIS that creates a hotspot for each > individual point in a dataset and assigns a score based on the amount of > points that fall within a given radius, say 200 metres (See image below)? > > > > I would be looking to weight the score with a variable within the dataset to. > > Regards > Finbar > > > > > * > > The contents and any attachments of this electronic mail message are > confidential and intended only for the named addressees. Dissemination, > forwarding, publication or other use of the message or attachments by any > unauthorised person is strictly prohibited. > > Unless stated to the contrary, any opinions expressed in this message are > personal and may not be attributed to AXA Insurance dac or any member of the > AXA Group of Companies. > > AXA Insurance dac is regulated by the Central Bank of Ireland. For business > in Northern Ireland, AXA Insurance dac is authorised by the Central Bank of > Ireland and subject to limited regulation by the Financial Conduct Authority. > Details about the extent of our regulation by the Financial Conduct Authority > are available from us on request. AXA Insurance dac is a private company > limited by shares, registered in Ireland number 136155. Registered Office > Wolfe Tone House, Wolfe Tone Street, Dublin 1. > > "AXA Supporting Road Safety in Ireland" > > Internet e-mails are not necessarily secure. AXA Group does not accept > responsibility for changes made to this message after it was sent. To help > promote the use of electronic documents and to be kinder to the environment, > please consider whether you really need to print this > email. > > * > ___ > 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
