GIS Help Clinic

del77 · 07-10-2014 7:23pm

thanks for the reply , i'll give them a go tomorrow and see if they are any quicker but government departments arent known for their lightning speed !

i cant seem to access that download in my GIS for some reason , i'll have another go at it and see what they are

cheers

Rowley Birkin QC · 17-10-2014 3:17pm

Something that's maybe not so much GIS as web development but still worth asking in here I hope!

This article (http://en.wikipedia.org/wiki/List_of_nuclear_power_stations) has a table which has northings and eastings. I'd like that table to show decimal degrees as some other similar articles show. The site that provides the coords also has this info stored. So along with 57° 15′ 35″ N, 12° 6′ 39″ E they also have the equivalent 57.259722, 12.110833 which is the format I would like.

Anyone know an easy way to get the full table to show these coords instead?

ManAboutCouch · 19-10-2014 6:27pm

Most Desktop GIS software include functions for doing that, but you can do it in Excel too. Probably the simplest way is to create a function and apply that to the cells with the DMS data. Here's a step-by-step: http://www.extendoffice.com/documents/excel/1497-excel-convert-decimal-degrees-to-degrees-minutes-seconds.html (Yes, the article title is for DD->DMS, but there's a function there for DMS->DD too)

Rowley Birkin QC · 19-10-2014 11:05pm

ManAboutCouch wrote: »

Most Desktop GIS software include functions for doing that, but you can do it in Excel too. Probably the simplest way is to create a function and apply that to the cells with the DMS data. Here's a step-by-step: http://www.extendoffice.com/documents/excel/1497-excel-convert-decimal-degrees-to-degrees-minutes-seconds.html (Yes, the article title is for DD->DMS, but there's a function there for DMS->DD too)

Cheers. I tried copying the table out and doing that during the week but no dice as it messes up the formatting.

Ideally, I was hoping to adjust the wiki table code so that instead of pulling the D M S coords it would pull the decimal degrees from the Geohack site. I've seen other tables that use this formatting.

Just realised the link is wrong in the original post and I can't edit... http://en.wikipedia.org/wiki/List_of_nuclear_power_stations

blue412 · 08-01-2015 2:06pm

Hi all,

I am having a problem with my projects in ArcGIS. I am using ArcGIS 10.2 and have AutoCAD drawings using ITM (projected rather than geographic even though I'm not sure what that means - as that's the only way I can view the data I think). I also have a pile of data in ING which ArcGIS is transforming for me, but the data is not lining up correctly - at least 15m out, and I'm not sure why.

Has anybody any advice!?

Thanks!!!

GetWithIt · 08-01-2015 4:41pm

I think this explains the discrepancy and how you can go about transforming your data correctly.

http://www.esri-ireland.ie/software/arcgis/free-mapping-software/ig-itm

The link indicates the solution is supported up to 10.1 but I suspect that's due to the link being a little old rather than anything untoward with the 10.2 release which you have.

blue412 · 08-01-2015 9:32pm

Thanks! I will try that!

tomatofruit · 27-03-2015 1:55pm

I am looking for ideas, am doing a college project using Arcgis and CSO data. I need to create a unique map using this info, other public datasets can be introduced if need be, there is such a broad range of info available that most ideas ive had are daft or too complicated for a college project. any ideas welcome. thanks

Mickeroo · 27-03-2015 2:15pm

tomatofruit wrote: »

I am looking for ideas, am doing a college project using Arcgis and CSO data. I need to create a unique map using this info, other public datasets can be introduced if need be, there is such a broad range of info available that most ideas ive had are daft or too complicated for a college project. any ideas welcome. thanks

How many maps do you have to make?

tomatofruit · 27-03-2015 2:58pm

In the example we were shown there were 4 maps on one sheet showing results of 2 queries on population analysis.

tomatofruit · 27-03-2015 3:09pm

im leaning towards something like diplaying all private septic tanks currently in or within 50m-100m of sensitve areas i.e SAC or rivers

Mickeroo · 27-03-2015 3:11pm

tomatofruit wrote: »

In the example we were shown there were 4 maps on one sheet showing results of 2 queries on population analysis.

The handiest thing is probably do a few chloropleth maps, my memory on what's exactly in CSO data is a bit hazy but you could probably do one on religions or the deprivation index.

You could also try a Cartogram on population density which would turn out something like this: http://i.telegraph.co.uk/multimedia/archive/01494/ireland_1494150i.jpg

You can get the script for doing it from here: http://arcscripts.esri.com/details.asp?dbid=15638

And instructions on how to install it here: http://www.gislounge.com/how-to-make-area-cartogram-maps-in-arcgis/

tomatofruit wrote: »

im leaning towards something like diplaying all private septic tanks currently in or within 50m-100m of sensitve areas i.e SAC or rivers

Yeah that would be very doable, all you would have to do is create a buffer around the SACs or rivers, then run a select query to select private septic tanks within it.

RuggieBear · 27-03-2015 3:14pm

you could create a surface (raster) if you have the stats and deds..something like a deprivation index or population density and then extrude...basically a glorified choropleth map

e.g.:

blue412 · 30-03-2015 10:00am

You could also do maps of all the water point pressures on SACs e.g. IPPC licenced facilities, quarries etc and/or managed waste water treatment facilities.

There is a pile of stuff on the EPA website, including all the water quality info which you could upload. Maybe you could relate the amount of septic tanks to water quality and see if there is a link? Not sure exactly how you'd approach this, maybe people on here would have suggestions. I think you could run a location query on all water quality results within say 250m of a septic tank or waste water treatment facility? You might have to sort upstream results from downstream manually....not sure, but if you too a single catchment this might be do-able.

This is a less complicated, but I think there is a list of qualifying interests at each SAC - maybe you could relate the septic tanks to the watery ones (i.e. fish, lamprey, etc). Even more controversial could you see if the water quality in SAC rivers is actually better than non SAC rivers!!

Manzoor14 · 01-04-2015 3:40pm

blue412 wrote: »

You could also do maps of all the water point pressures on SACs e.g. IPPC licenced facilities, quarries etc and/or managed waste water treatment facilities.

There is a pile of stuff on the EPA website, including all the water quality info which you could upload. Maybe you could relate the amount of septic tanks to water quality and see if there is a link? Not sure exactly how you'd approach this, maybe people on here would have suggestions. I think you could run a location query on all water quality results within say 250m of a septic tank or waste water treatment facility? You might have to sort upstream results from downstream manually....not sure, but if you too a single catchment this might be do-able.

This is a less complicated, but I think there is a list of qualifying interests at each SAC - maybe you could relate the septic tanks to the watery ones (i.e. fish, lamprey, etc). Even more controversial could you see if the water quality in SAC rivers is actually better than non SAC rivers!!

Seeing as this is my day-to-day job, PM me if you need any help on it!

GetWithIt · 01-04-2015 5:17pm

ArcGIS is a broad term as it's used across the Esri product stack. Do you mean to make a web application that consumes an ArcGIS server map service or something else?

tomatofruit · 02-04-2015 8:44am

That is something i would like to be able to do, but for this project it is just a straightforward comparative analysis of 2 maps

Rowley Birkin QC · 19-04-2015 1:58pm

Does anyone have a shapefile that shows Dublin postcodesthat they can share?

I've had a look around and can't locate one. Also can't get them out of OSM.

Any help appreciated. Thanks.

Mickeroo · 23-04-2015 9:44am

Rowley Birkin QC wrote: »

Does anyone have a shapefile that shows Dublin postcodesthat they can share?

I've had a look around and can't locate one. Also can't get them out of OSM.

Any help appreciated. Thanks.

Did you try cso.ie? You can download a fair few data sets from there, this mapping tool might help narrow down what you need: http://census.cso.ie/sapmap/

Rowley Birkin QC · 27-04-2015 2:29pm

Mickeroo wrote: »

Did you try cso.ie? You can download a fair few data sets from there, this mapping tool might help narrow down what you need: http://census.cso.ie/sapmap/

Cheers but I don't see them listed on there. Anyone else?

RuggieBear · 27-04-2015 2:52pm

georeference and digitise this:

http://www.dublintourist.com/maps/dublin-postal-codes/

not exactly pinpoint accurate...

Rowley Birkin QC · 27-04-2015 7:21pm

RuggieBear wrote: »

georeference and digitise this:

http://www.dublintourist.com/maps/dublin-postal-codes/

not exactly pinpoint accurate...

Cheers. I'll share the file here if I get around to it. It's for a side project to help me buy a house!

Bizarre that these aren't available anywhere.

slowburner · 03-06-2015 9:07am

I should know more about GIS but I have to admit I don't. I'm sure I'm not alone.
What would you think of another thread along the lines of...GIS for Dummies?

Mickeroo · 03-06-2015 9:10am

slowburner wrote: »

I should know more about GIS but I have to admit I don't. I'm sure I'm not alone.
What would you think of another thread along the lines of...GIS for Dummies?

Would be no harm sure.

Manzoor14 · 03-06-2015 12:14pm

Few here were looking for a Dublin postal zones a while back. Over the weekend (yeah I know, I had a buzzing bank holiday! :P), I threw together a rough (few slivers/gaps etc) dataset of all the zones. It's 100% accurate based on what buildings are in each zone, but when you overlay on some background mapping, i.e. Google Earth, it is slightly offset by a few metres, but accurate enough to make out what's where.

PM me if you want a copy!

Rowley Birkin QC · 03-06-2015 3:06pm

Nice one, PM sent!

$kilkenny · 20-07-2015 12:00pm

Would anyone know where to get an ESB powerline map shapefile? currently putting some stuff together and cant seem to find any for ireland.
ideally im looking for all powerlines, low voltage and high voltage but low voltage powerlines being key.

Thanks!!

also does anyone know how to create just an arrow head, that i can just place down and rotate it the way i want and done, but using multiple arrow heads on 1 map?

Manzoor14 · 21-07-2015 1:47pm

$kilkenny wrote: »

Would anyone know where to get an ESB powerline map shapefile? currently putting some stuff together and cant seem to find any for ireland.
ideally im looking for all powerlines, low voltage and high voltage but low voltage powerlines being key.

I'm not sure this is freely available at the minute, but I think I remember reading/hearing a while back somewhere that it will/should be from October or November onwards through FOI possibly. I can't find any link to confirm that though (possibly I just dreamed it!!), might be worthwhile dropping ESB an email directly.

$kilkenny wrote: »

also does anyone know how to create just an arrow head, that i can just place down and rotate it the way i want and done, but using multiple arrow heads on 1 map?

What software are you using? I'm presuming ArcMap, if so, then an arrow head symbol is just a triangle? Select this as the symbol. Then click edit symbol and choose Arrow Marker Symbol from the dropdown.

You can then rotate this based on a numeric field in the attribute table. So when you create your points table, add in a Rotation field or similar.

With your points created and styled as arrows (or triangles) and the Rotation field values filled in, go to Properties->Symbology. Select the Advanced->Rotation option and choose your rotation value field. You can edit these values then to rotate the arrows accordingly.

I haven't used Arc too much recently, so there might be an easier method these days!

This should get you out of a hole though.

$kilkenny · 21-07-2015 2:30pm

its unfortunate that I can download all the shapefiles like powerlines and gas lines for the UK and not for ireland just yet. thanks for that

regarding the arrow head, im in a similar boat with your method, ive a botched way of creating one using the line with an arrow head but like your idea, its complicated... a simple way is ideal.

Forester15 · 10-11-2015 12:42pm

Hi Folks,
I'm starting to use QGIS and am encountering some difficulties. I was just wondering is there any users in the munster region that are willing to give some tutorials.
Thanks

Micilin Muc · 11-11-2015 12:51pm

Forester15 wrote: »

Hi Folks,
I'm starting to use QGIS and am encountering some difficulties. I was just wondering is there any users in the munster region that are willing to give some tutorials.
Thanks

Sorry I can't help with tutorials in the Munster region, but why don't you post some of your issues here?

Forester15 · 13-11-2015 10:49am

Thanks,
Ok I'm having a good few issues, but I suppose the main ones at the moment are when I'm snapping for creating a feature there doesn't seem to be anyway of undoing edits, also when I'm calculating the area of a polygon it's coming up with the wrong area despite the fact that I'm using ITM projections. Another problem that I'm encountering is when I'm labeling a feature the label isn't appearing on the feature.
Thanks again for your reply

Forester15 · 30-11-2015 11:54am

Micilin Muc wrote: »

Sorry I can't help with tutorials in the Munster region, but why don't you post some of your issues here?

I would also be prepared to travel outside of Munster for an hour or two tutorial as I believe would be adequate to resolve any issues I have with QGIS. If you know of anyone I would be most grateful if you could send me on their contact details and I will gladly pay for the tuition.

Manzoor14 · 29-02-2016 11:18am

Just an FYI, a few people here (although i'm not sure if it was in this thread or another one!) have enquired over the last few years about the OSi rivers and lakes data, which previously required an OSi license to obtain. All the non-generalised data has just been released, available to download now on the EPA data portal- gis.epa.ie

Fathom · 24-03-2016 10:08pm

Anyone read PostGIS in Action, 2nd edition? By Regina Obe & Leo Hsu. Good introductory text or not? Recommended alternatives?

Crazyivan 1979 · 30-03-2016 2:00pm

does anyone know how to convert degree decimal coordiantes to Irish national grid coordinates using an excel sheet rather than an oline converter?

Opelfruit · 17-09-2016 1:32pm

I have an interview coming up that asks for some experience using Smallworld.

I've never heard of it before.

Has anyone used it? Is it similar to Mapinfo or ESRI?

Fathom · 18-09-2016 6:36pm

This appears to be a free online Smallworld Training Pathway. Not sure. I've not used.
Link: https://cdn.safe.com/training/course-materials/Smallworld-Pathway-Training-2015.pdf

illdoit2morrow · 16-12-2016 11:37pm

Hi all, first time novice poster here with a problem which i just can't find an anser to

I've an assignment to do for college for which i am using qgis.

So i have two vector layers.

Layer one consists of 188 polygons which represent public parks.
The attributes of the my park layer are;
id
osm_id
name (Park Name)
type
area (area of the polygon which i have calculated)

Layer two consists of polygons which represent constituencies.
The attributes in this layer are;
con_2013
name (Constituency Name)
male2011 (male population)
female2011 (female population)
total2011 (total population)
area (area of the constituency which i have calculated)

How do i count the number of parks (layer one) in a constituency (layer two)?
There is nothing to join the two layers together only the fact that they overlap on the earths surface.

TIA

Mickeroo · 17-12-2016 12:11am

You could try convert the parks to point data and then use Vector --> Analysis Tools --> Points In Polygon

Conchir · 03-10-2017 7:51pm

I have an excel spreadsheet with about 1200 ITM co-ordinates, and I'd like to convert them to WGS84 lat/long co-ordinates. That can be done on this website, but doing them one by one would take a lot of time: http://www.fieldenmaps.info/cconv/cconv_ie.html

Does anyone know either of a program I could input all of my points into to convert them, or else the conversion rate (is there one?) which I could just do on excel.

Thanks!

slowburner · 04-10-2017 12:54am

https://www.uwgb.edu/dutchs/UsefulData/UTMConversions1.xls

glaoine · 17-10-2017 7:44pm

if anyone in GIS is interested.
google Address Data, Database & GIS Technician on Jobs.ie for CityPOST.
New GIS and Routing Sequencing Project using Eircode and High speed sorting equipment.

ayup12 · 19-02-2018 1:38pm

Hi all,

My apologies if this query has been addressed previously. I'm using ArcMap 10.4. I have a point and polygon shapefiles in TM65 Irish National Grid (deprecated...?). I want to transform these shapefiles to Irenet95/ITM using ArcMap. Using the project tool under projections and transformations, when I set my output coordinate system as Irenet95 (under either GCS or PCS) I get an error that I have a 'invalid geographic transformation', and thus cannot execute any transformations. Any help would be much appreciated!

If I add these shapefiles within a project currently working in Irenet95/ITM, I can project these shapefiles to Irenet95 'on the fly' and the seem to project perfectly (verified using another source). However, I ideally want to be able to transform the TM65 shapefiles and save them as new Irenet95 shapefiles.

Thanks in advance for any help and suggestions. Let me know if more info is useful.

NotCarrotRidge · 19-02-2018 2:50pm

ayup12 wrote: »

Hi all,

My apologies if this query has been addressed previously. I'm using ArcMap 10.4. I have a point and polygon shapefiles in TM65 Irish National Grid (deprecated...?). I want to transform these shapefiles to Irenet95/ITM using ArcMap. Using the project tool under projections and transformations, when I set my output coordinate system as Irenet95 (under either GCS or PCS) I get an error that I have a 'invalid geographic transformation', and thus cannot execute any transformations. Any help would be much appreciated!

If I add these shapefiles within a project currently working in Irenet95/ITM, I can project these shapefiles to Irenet95 'on the fly' and the seem to project perfectly (verified using another source). However, I ideally want to be able to transform the TM65 shapefiles and save them as new Irenet95 shapefiles.

Thanks in advance for any help and suggestions. Let me know if more info is useful.

Easy peasy. Open a map and set to Irenet95. Then add your shapefiles. Then right click on the shapefile name in the table of contents and choose data/export data. Browse to where you want to save and make sure that the coordinate system in the dropdown menu is set to reference frame and not to the original file.

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