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- About BojanŠavrič
BojanŠavrič
Esri Contributor
since
08-10-2015
2 weeks ago
83
Posts created
130
Kudos given
11
Solutions
80
Kudos received
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My Ideas
(0 Idea Submissions)Latest Contributions by BojanŠavrič
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Hi David! Unfortunately, the polyconic projection is not implemented as an oblique map projection in ArcMap and ArcGIS Pro. The Latitude of Origin parameter only moves (0, 0) point to the given latitude on the Central Meridian.
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07-16-2020
09:55 AM
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Hi Marta Bescans, You are missing a transformation, because your definition of GCS_CAPE is a custom definition (WKID is 0). Correct definition is: To make it work with a custom GCS, you need to create a custom geographic transformation that transforms your data between a custom GCS and WGS 1984. For the whole area of the Chobe District, which covers approximately the area between 23.8 and 26 degrees East and 17.78 and 19 degrees South, you should probably use Cape_UTM_Zone_36S, which has the area of use between 21 and 27 degrees East and 17.78 and 26.88 degrees South. You could also use Cape_UTM_Zone_35S since it covers most of the area of the Chobe District. I hope this helps, Bojan
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07-02-2020
02:44 PM
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Hi Marta Bescansa! I have two questions... 1) Can you provide me the full definition of you Transverse_Mercator coordinate system in GCS_CAPE? Does the coordinate system has an WKID? 2) What version of ArcGIS Pro are you using? Thanks, Bojan
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07-02-2020
11:21 AM
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Define Projection tool should only be used to assign CS information when data has unknown or incorrect coordinate system. It does not change the coordinates therefore your data moves. To convert (change coordinates) of your data to some other CS, you should use Project tool.
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06-15-2020
11:54 AM
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As Melita Kennedy already mentioned, VCS-es are listed in ArcGIS Desktop and Server / ArcGIS Pro Geographic and Vertical Coordinate System Tables. Map projections are a bit different than coordinate systems. They do not have many properties that can be marked Yes/No/Partially, like map projections do. Their list is also much longer and it keeps growing. However, I am open to ideas. What information would you be interested to see for available VCS-es? Thanks.
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05-06-2020
04:02 PM
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I am not familiar how exactly map service works or if you can use linear units on WGS84, but those values should always be in angular units. Meters do not make any sense when data is in geographic coordinates: a degree span at the equator is different then 1 degree near a pole.
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04-30-2020
02:04 PM
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There are a couple vertical coordinate systems (VCS-es) you can use with the generic WGS84. For the ellipsoidal heights, you can use VCS WGS 1984 (WKID::115700). This is native output of GPS if your receiver does not convert your heights automatically. These heights are not very practical for measurements and an analysis might go wrong if you use those heights. For example, river stream might end up going upstream and not downstream. However, a lot of global height data is defined in this VCS. To measure the height/altitude/elevation you should be using gravity-related VCS-es, which are based on global geoid models (like EGMs) or they are based on some (mean) sea level. EGM2008 Geoid (WKID::3855) is most recent one and ArcGIS Pro has two vertical transformations that allows you to convert between ellipsoidal WGS 1984 and gravity-related EGM2008 Geoid heights. Keep in mind, you need to install ArcGIS Coordinate System Data to be able to transform your heights. Check also: List of supported vertical coordinate systems List of supported vertical transformations
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04-30-2020
01:48 PM
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raju vayu, coordinates of your point are probably in Projected Coordinate System called WGS 1984 Web Mercator (auxiliary sphere), WKID 3857. They are projected with Mercator Auxiliary Sphere projection from latitude and longitude values defined in Geographic Coordinate System WGS 1984, WKID 4326. If you project those values back to geographic coordinates, you would have much smaller numbers, roughly -79.8523124, 43.2021892. I hope this helps.
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04-28-2020
09:37 AM
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Go to Map Properties, select "Coordinate Systems" and then "New Projected Coordinate System..." Local projection would work for your application. For Longitude and Latitude of Center use geographic coordinates of the origin point, False Easting, False Northing, and Azimuth are 0, and Scale Factor mark as 1. For the Geographic Coordinate System, select the one of your origin point.
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04-27-2020
04:11 PM
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What geographic transformation is used to convert between WGS 1984 and Everest 1830? It might be that your misalignment is caused by incorrect transformation or the lack of it.
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04-01-2020
04:07 PM
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Maps that seem to be aligned with meridians and not with parallels were probably transformed with wrong or without any geographic transformation between WGS84 to D48 datums. Other maps probably do not align because they are in geographic coordinates, latitudes and longitudes, but they have assigned projected coordinate system instead. If you can send me examples of both, I can have a look. I just PM you contact info.
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03-31-2020
10:39 AM
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Danijel Davidovič, how much are your raster and vector features apart? In which coordinate systems was your data originally in? More info would be most helpful.
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03-30-2020
05:19 PM
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The are Arctic Ocean Basemaps available in Living Atlas and you can use those. https://livingatlas.arcgis.com/en/browse/#d=2&q=%22Arctic%20Ocean%20Basemap%22
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01-13-2020
02:27 PM
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You can also consider creating a custom version based on Projection Wizard tool. Just an idea.
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12-06-2019
01:45 PM
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No direct transformation to ITRF 2014 has been implemented in ArcGIS. We currently support three transformations related to SWEREF99, SWEREF99 to ETRS 1989, SWEREF99 to WGS 1984, and SWEREF99 to RT90. All three are the ones registered with EPSG. Does your customer has any official documentation about this transformation?
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11-29-2019
11:01 AM
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My kudoed posts
| Title | Kudos | Posted |
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| 1 | 07-15-2022 12:09 PM | |
| 1 | 05-13-2025 08:22 AM | |
| 1 | 08-25-2021 02:30 PM | |
| 2 | 08-07-2024 09:22 AM | |
| 2 | 06-03-2024 12:50 PM |
Activity Feed
- Posted Re: Create projection NAD_1983_CSRS_UTM_Zone_17N (WKID: 22617, or 22717) v6 or v7 on ArcGIS Pro Ideas. 02-10-2026 03:54 PM
- Kudoed Re: EPSG release and ArcGIS Projection Engine for MelitaKennedy. 01-23-2026 07:46 AM
- Kudoed Re: EPSG release and ArcGIS Projection Engine for jcokin1. 01-23-2026 07:46 AM
- Kudoed The vertical transformations WGS_1984_To_EGM96 for Pål_Herman_Sund. 12-02-2025 07:49 AM
- Posted Re: Create projection NAD_1983_CSRS_UTM_Zone_17N (WKID: 22617, or 22717) v6 or v7 on ArcGIS Pro Ideas. 10-16-2025 06:46 AM
- Posted Re: Ability to override transformation extents when defining transformation paths on ArcGIS Pro Ideas. 10-16-2025 06:18 AM
- Posted Re: Prepare your data for the National Spatial Reference System modernization of 2022 in the U.S. on Coordinate Reference Systems Blog. 07-18-2025 12:07 PM
- Kudoed Re: Prepare your data for the National Spatial Reference System modernization of 2022 in the U.S. for COSPNWGuy. 07-18-2025 12:00 PM
- Got a Kudo for Re: CGVD28 to CGVD2013 Transformation File Format. 05-20-2025 12:06 PM
- Got a Kudo for Re: In the continental U.S., is the Geoid above or below the Ellipsoid?. 05-13-2025 08:38 AM
- Posted Re: In the continental U.S., is the Geoid above or below the Ellipsoid? on ArcGIS Pro Questions. 05-13-2025 08:22 AM
- Kudoed In the continental U.S., is the Geoid above or below the Ellipsoid? for Craig_Eissler_Iceman. 05-13-2025 08:15 AM
- Tagged Re: Adding local geoid on ArcGIS Pro Questions. 05-13-2025 08:10 AM
- Kudoed Re: Adding local geoid for RyanDillingham. 05-13-2025 07:58 AM
- Posted Re: Adding local geoid on ArcGIS Pro Questions. 05-13-2025 07:55 AM
- Got a Kudo for Re: Adding local geoid. 05-12-2025 11:01 AM
- Kudoed Re: Changing the map projection in ArcGIS Online for JenniferWrightsell-Hughes. 03-26-2025 07:46 PM
- Posted Re: Create projection NAD_1983_CSRS_UTM_Zone_17N (WKID: 22617, or 22717) v6 or v7 on ArcGIS Pro Ideas. 11-07-2024 11:33 AM
- Posted Re: Prepare your data for the National Spatial Reference System modernization of 2022 in the U.S. on Coordinate Reference Systems Blog. 10-25-2024 12:01 PM
- Kudoed Re: Prepare your data for the National Spatial Reference System modernization of 2022 in the U.S. for Wojciech87. 10-25-2024 12:01 PM
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