You can not send a text to someone and have that person's device automatically reply with his/her location coordinates or display the location on a map on your device.
You can share an app with someone and if he/or she also has the app you can share locations with one another in real time using a CloudDB or FirebaseDB or possibly a Google Spreadsheet .and display the locations on a map . Here is one way to do that shown in this tutorial:
or you can share your location with someone by sending them a text and provide a way to display that location on their device.