Aug 07, 2014 Ended up created 2 Sql functions to calculate longitude and latitude values given a pair of State Plane x,y coordinates. I then use these functions inside a Sql trigger to auto-calculate lat/lon fields within my feature classes. I appreciate the help, works great! Mar 05, 2016 How to write a custom function that converts a physical address to latitude and longitude coordinates in Excel using Google's Geocoding API. The VBA code used in this video was written by Christos. Download this app from Microsoft Store for Windows 10, Windows 10 Mobile, Windows 10 Team (Surface Hub), HoloLens. See screenshots, read the latest customer reviews, and compare ratings for Zenit - Latitude, Longitude, UTM, MGRS, WGRS and QTH Converter.
I wanted to be sure and sneak in a post before 2016 ended in California. I also wanted to put into writing that I resolve to post at least 6 times in 2017. Let’s get on with the post…
I get the following question often:
“How do I automatically convert my XY or Lat/Long coordinates into a point geometry?”
Sometimes that question is followed by:
“How do I populate XY or Lat/Long columns with values from a newly added point geometry?”
This is typically done using a SQL trigger that listens for incoming values either from editing a map document or inserting with SQL. When using a native DBMS spatial type such as SQL Server Geometry or Postgres’ PostGIS type, constructor functions and spatial operator functions are provided that allow one to query different spatial properties.
For instance, in SQL Server we can use the
functions for Geography types or
for Geometry types on a spatial column called “shape”.
The following example shows the use of SQL Server Spatial constructors to create a point based off the incoming coordinates. Using the STPointFromText constructor, we need to build up the Point string containing the coordinates and SRID. This means the incoming coordinate values must be cast to string type. This sample is provided AS IS and must be properly tested before implementing in a production environment.
Here is a SQL Server Geography example using shape.Lat and shape.Long. to update columns called “latitude” and “longitude” with their respective values. This sample is provided AS IS and must be properly tested before implementing in a production environment.
The samples above assume that you are using non-versioned feature classes or spatial tables. Applying triggers for insert, update and delete operations on feature classes and tables registered as versioned should not be attempted. It will certainly make a mess and break things.
Here is the documentation for the SQL Server spatial constructors and properties discussed above as well as some additional examples on GitHub.
GitHub – Insert SQL Server Geometry with Cursor
GitHub – Postgres XY to Point Cursor
Nowadays, GPS localization is common. Some apps use decimal format (48.85833) while others return the coordinates in degrees, minutes and seconds (48°51'29.99').
In this article I will show you how to convert from one format to the other and vice-versa.
Add GPS coordinates to address
If you are looking to add GPS coordinates to your address, please go to this page.
How to write a GPS coordinates in Excel
GPS coordinates are generally written using the symbols ° (degrees), '(minutes), and ' (seconds).
But if you keep your coordinate as a string, no calculation is possible. So it will be impossible to convert the GPS coordinates ⛔⛔⛔
What is the best way to write a GPS coordinate?
Use the following format for your GPS coordinates - hours:minutes:seconds. Each part of the coordinate should be delimited with a colon ':'
48:51:29.99
The default cell display could be different depending on the version of Excel that you are using. It can display the GPS coordinates as either a date or a time.
Don't worry, we will correct this formatting soon ???
Insert a negative time
The standard GPS coordinate is:
- positive for East and North
- negative for West and South
Unfortunately, Excel doesn't accept a negative time, so you need to wrap it in double quotes as though it were text. Then put a minus sign before the opening quote.
=-'74:02:40.29'
But the cell content is displayed as a string of #
Excel doesn't like negative time. But you can correct this by checking one option in Excel.
- Go to the menu File>Options
- Select Advanced
- At the bottom of the list of options, check the option 'Use 1904 date system'
Customize the time format
Now, let's customize the format of our cell:
- Open the Format cell dialog box (Ctrl + 1)
- Select the option Custom
- In the Type box, enter this format code exactly as it is displayed below
Excel Mac 2016 Get Longitude Latitude Coordinates For An Address In China
[hh]°mm'ss.00'
Excel Mac 2016 Get Longitude Latitude Coordinates For An Address Change
The hour between square brackets is compulsory to display a value over 23 hours.
Convert coordinates from Degree, Minute, Second (DMS) to decimal
Because we have written the coordinate as a number, we just have to multiply the cell by 24 (24 hours in a day). The number format is General.
And the the conversion is finished ???
=B3*24
Then just change the format of the cell range D3:E7 to General.
Convert coordinates from decimal to Degree, Minute, Second
And the other way round, to convert a decimal value to degrees, minutes and seconds, simply divide the value by 24.
= B3/24