Re: [Qgis-user] Symbology
Turns out the "Detect field types" in import layout had become unchecked. Thanks for suggestions. AY -- Original Message -- From "kirk" To "Allan Younger" ; "Kobben, Barend (UT-ITC)" ; "chris hermansen" Cc "QGIS User" Date 18/06/2022 6:03:37 PM Subject Re: [Qgis-user] Symbology If the data is being read as a character versus a integer or decimal, you cannot use graduated symbols. Double left click on the layer in the legend and select properties. Select the Fields tab and see what format the attributes are being read as. I have run into this when generating a csv from a spreadsheet from different language. I would convert the format in excel or livre office and regenerate the csv file. Alternatively you can use text editor to replace the quotes on each value in the existing csv. Kirk Schmidt Sent from my Galaxy Original message From: Allan Younger via Qgis-user Date: 2022-06-18 3:13 a.m. (GMT-04:00) To: "Kobben, Barend (UT-ITC)" , chris hermansen Cc: QGIS User Subject: Re: [Qgis-user] Symbology csv file -- Original Message -- From "Kobben, Barend (UT-ITC)" To "chris hermansen" ; "Allan Younger" Cc "QGIS User" Date 18/06/2022 12:32:07 PM Subject Re: [Qgis-user] Symbology Usually this happens if you have numbers (quantitatvie data) that are stored in your file/db as Strings (text) -- Barend Köbben On 18/06/2022, 04:25, "Qgis-user on behalf of chris hermansen via Qgis-user" Qgis-user@lists.osgeo.org> wrote: Allan and list, On Fri, Jun 17, 2022 at 7:00 PM Allan Younger via Qgis-user wrote: Hi, I'm trying to show assay results as simple dot plots as graduated colour and size scaled points based on a selected element. Problem is that in the layer properties/symbology tab, I cannot select anything. Had the problem in Madeira 3.4 & assumed was just a glitch that had developed in that copy over time. Installed 3.22.7, same problem. Csv file has 162000 records & 30 column with co-ords for every point; with locations plotting a-ok. At the top of the Layer Properties > Symbology dialogue window, have you selected one of the options other than "No Symbols"? For example, "Graduated"? Then in the field Value one of your layer's attributes? Then pressed the "Classify" button? -- Chris Hermansen · clhermansen "at" gmail "dot" com C'est ma façon de parler. ___ 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
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relacionamento Ruy Edy Iglesias da Silveira ___ 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] Symbology
Hi Kirk, Yes coming up as text whereas another file of diff data which comes up fine is "double". Csv file generated from xlsx file which is my SOP, not happened previously & been using QGIS for 10yrs+. Can redo as has been thru a few mods. Chrs AY -- Original Message -- From "kirk" To "Allan Younger" ; "Kobben, Barend (UT-ITC)" ; "chris hermansen" Cc "QGIS User" Date 18/06/2022 6:03:37 PM Subject Re: [Qgis-user] Symbology If the data is being read as a character versus a integer or decimal, you cannot use graduated symbols. Double left click on the layer in the legend and select properties. Select the Fields tab and see what format the attributes are being read as. I have run into this when generating a csv from a spreadsheet from different language. I would convert the format in excel or livre office and regenerate the csv file. Alternatively you can use text editor to replace the quotes on each value in the existing csv. Kirk Schmidt Sent from my Galaxy Original message From: Allan Younger via Qgis-user Date: 2022-06-18 3:13 a.m. (GMT-04:00) To: "Kobben, Barend (UT-ITC)" , chris hermansen Cc: QGIS User Subject: Re: [Qgis-user] Symbology csv file -- Original Message -- From "Kobben, Barend (UT-ITC)" To "chris hermansen" ; "Allan Younger" Cc "QGIS User" Date 18/06/2022 12:32:07 PM Subject Re: [Qgis-user] Symbology Usually this happens if you have numbers (quantitatvie data) that are stored in your file/db as Strings (text) -- Barend Köbben On 18/06/2022, 04:25, "Qgis-user on behalf of chris hermansen via Qgis-user" Qgis-user@lists.osgeo.org> wrote: Allan and list, On Fri, Jun 17, 2022 at 7:00 PM Allan Younger via Qgis-user wrote: Hi, I'm trying to show assay results as simple dot plots as graduated colour and size scaled points based on a selected element. Problem is that in the layer properties/symbology tab, I cannot select anything. Had the problem in Madeira 3.4 & assumed was just a glitch that had developed in that copy over time. Installed 3.22.7, same problem. Csv file has 162000 records & 30 column with co-ords for every point; with locations plotting a-ok. At the top of the Layer Properties > Symbology dialogue window, have you selected one of the options other than "No Symbols"? For example, "Graduated"? Then in the field Value one of your layer's attributes? Then pressed the "Classify" button? -- Chris Hermansen · clhermansen "at" gmail "dot" com C'est ma façon de parler. ___ 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] Symbology
If your layer is a CSV file, do you not first need to convert it to a spatial form, for example a shapefile? In case I misunderstand, if it came from a CSV file, then as Barend suggests, maybe the type of the column is incorrect. You can use a CSVT file to define column types prior to conversion; alternatively you can add a new column of type integer for example, and convert the string value to integer. On Fri, Jun 17, 2022 at 11:13 PM Allan Younger wrote: > csv file > > -- Original Message -- > From "Kobben, Barend (UT-ITC)" > To "chris hermansen" ; "Allan Younger" < > ahyoun...@iinet.net.au> > Cc "QGIS User" > Date 18/06/2022 12:32:07 PM > Subject Re: [Qgis-user] Symbology > > Usually this happens if you have numbers (quantitatvie data) that are > stored in your file/db as Strings (text) > > > > *-- * > > *Barend Köbben* > > > > > > On 18/06/2022, 04:25, "Qgis-user on behalf of chris hermansen via > Qgis-user" Qgis-user@lists.osgeo.org> wrote: > > > > Allan and list, > > > > On Fri, Jun 17, 2022 at 7:00 PM Allan Younger via Qgis-user < > qgis-user@lists.osgeo.org> wrote: > > Hi, > > I'm trying to show assay results as simple dot plots as graduated colour > and size scaled points based on a selected element. > > Problem is that in the layer properties/symbology tab, I cannot select > anything. > > Had the problem in Madeira 3.4 & assumed was just a glitch that had > developed in that copy over time. > > Installed 3.22.7, same problem. > > Csv file has 162000 records & 30 column with co-ords for every point; with > locations plotting a-ok. > > > At the top of the Layer Properties > Symbology dialogue window, have you > selected one of the options other than "No Symbols"? For example, > "Graduated"? > > > > Then in the field Value one of your layer's attributes? > > > > Then pressed the "Classify" button? > > > -- > > Chris Hermansen · clhermansen "at" gmail "dot" com > > C'est ma façon de parler. > > -- Chris Hermansen · clhermansen "at" gmail "dot" com C'est ma façon de parler. ___ 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] Symbology
If the data is being read as a character versus a integer or decimal, you cannot use graduated symbols. Double left click on the layer in the legend and select properties. Select the Fields tab and see what format the attributes are being read as. I have run into this when generating a csv from a spreadsheet from different language. I would convert the format in excel or livre office and regenerate the csv file. Alternatively you can use text editor to replace the quotes on each value in the existing csv.Kirk SchmidtSent from my Galaxy Original message From: Allan Younger via Qgis-user Date: 2022-06-18 3:13 a.m. (GMT-04:00) To: "Kobben, Barend (UT-ITC)" , chris hermansen Cc: QGIS User Subject: Re: [Qgis-user] Symbology csv file -- Original Message -- From "Kobben, Barend (UT-ITC)" To "chris hermansen" ; "Allan Younger" Cc "QGIS User" Date 18/06/2022 12:32:07 PM Subject Re: [Qgis-user] Symbology Usually this happens if you have numbers (quantitatvie data) that are stored in your file/db as Strings (text) -- Barend Köbben On 18/06/2022, 04:25, "Qgis-user on behalf of chris hermansen via Qgis-user" wrote: Allan and list, On Fri, Jun 17, 2022 at 7:00 PM Allan Younger via Qgis-user wrote: Hi, I'm trying to show assay results as simple dot plots as graduated colour and size scaled points based on a selected element. Problem is that in the layer properties/symbology tab, I cannot select anything. Had the problem in Madeira 3.4 & assumed was just a glitch that had developed in that copy over time. Installed 3.22.7, same problem. Csv file has 162000 records & 30 column with co-ords for every point; with locations plotting a-ok. At the top of the Layer Properties > Symbology dialogue window, have you selected one of the options other than "No Symbols"? For example, "Graduated"? Then in the field Value one of your layer's attributes? Then pressed the "Classify" button? -- Chris Hermansen · clhermansen "at" gmail "dot" com C'est ma façon de parler. ___ 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
