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Any referenced datasets can be downloaded from "Module downloads" in the module overview.
Transcript
00:01
Welcome to adding control points and imagery within the roads
00:05
and highways collection.
00:07
This is at the very beginning and it
00:09
is the first objective in the beginning
00:12
to build the base map course.
00:15
We begin in the base map drawing file found in the drawings
00:19
folder of the data set and on the Settings
00:22
tab of the tool space right click on the drawing
00:25
name at the top.
00:27
So we can check the drawings units and geospatial
00:30
coordinates on.
00:32
Note that we are using meters and the coordinate zone
00:36
code is co 83 dash C on the Insert tab,
00:47
go to the Import group and select points from file.
00:52
Now on the import points dialog.
00:55
Select the plus icon and browse to the point folder of the data
00:59
set, we may need to change the files of type
01:03
to CSP so that the g.p.s.
01:06
control points file is displayed.
01:09
And then opened also note the extra bit of information
01:14
that is included at the end of the file name.
01:17
This helps us to know what the format of the data
01:20
is and can avoid point data that comes in 90 degrees in error
01:25
or shows up as a straight line in the dialog box.
01:29
Scroll to the bottom of the specified point file
01:32
format and select pnec d comma delimited
01:40
the preview window will pass the first few lines of the file.
01:44
So you can validate that you have chosen the correct format.
01:49
I will add the points to a new point group by checking the box
01:53
and creating a new group named g.p.s.
01:57
control when that is complete.
01:60
Make certain that there are no checked boxes
02:02
in any of the advanced options and then OK.
02:06
This import.
02:08
Now we see the new points on the prospect or tab
02:12
expand expanded the point group collection
02:14
by picking on the plus side right click on the points group
02:19
and select update to sync the new data.
02:23
Next do a quick test to see that the no display group is working
02:28
in the point group properties move the no display
02:31
group to the top of the stack and see that the points are now
02:36
not seen in the drawing canvas.
02:39
Return the g.p.s.
02:41
control group back to the top of the stack.
02:44
And now we can continue change the scale of the view
02:52
to 1 to 5,000 so that the Coco point markers and labels become
02:57
bigger and easier to see.
02:59
Let's check if this g.p.s.
03:00
points are in the correct location.
03:03
Select the location tab on the ribbon
03:06
and turn on the hybrid map.
03:08
So we can see a mix of aerial imagery and the map features
03:14
and now we see that the control points do appear correctly
03:18
in the area of our project.
03:20
Next, we will check the points with the drone captured
03:23
or the photo.
03:24
We need to use the map tools to accomplish this.
03:28
Use the map W space command to turn on the task pane
03:34
go to the display manager tab, I will temporarily
03:38
turn off the tool space panel to give us
03:40
some more room returning to the display manager.
03:44
Select the data icon and then select Connect to data.
03:49
This opens the data connect panel.
03:53
And you can see all of the different geospatial data types
03:56
that we can use.
03:58
Select Add raster image or surface connection.
04:02
You now have the choice to select either a single image
04:06
file or connect to a folder that might contain many image files.
04:12
We will select the single file option
04:15
and browse to the images folder of the course data set
04:19
and open the ortho image tiff file looking closely
04:32
at the coordinate system information,
04:34
we see that the image file has a different system
04:37
than that of the drawing.
04:39
These two systems are able to transform.
04:43
So the image will be located correctly in our base map
04:46
drawing click on.
04:48
Add to map and the image is connected
04:60
in the display manager.
05:01
The image can easily be toggled on and off.
05:05
Let's check for accuracy by zooming in on one
05:08
of the control points.
05:10
I will change the scale to 1 to 500
05:13
to get a smaller cocoa marker and label and zoom in even
05:18
closer to see how the g.p.s.
05:20
control matches the white panel points.
05:23
A nice feature of connected raster data
05:26
is the ability to re sample the data, which automatically
05:30
crops it to the view in some instances.
05:34
The image may also become more clear the g.p.s.
05:39
points are matched to the visible white panel points.
05:43
So our drone data is located accurately
05:46
to our small project area.
05:52
To restore the entire image use Zoom to extents.
05:58
Finally, we should compare the drone image
06:01
with the common Bing map imagery on the location tab.
06:07
Turn on the aerial map and zoom in closely
06:11
to the east edge of the orthophoto at mineral avenue.
06:16
Notice the misalignment.
06:18
This is expected.
06:20
And this is because the drone captured
06:22
image is much more accurately positioned to the real surface.
06:26
We use the Bing imagery for approximations
06:30
and we will use the drone ortho image for accurate details.
06:34
This concludes the first objective of this course.
06:37
And now you're ready to begin the.
Video transcript
00:01
Welcome to adding control points and imagery within the roads
00:05
and highways collection.
00:07
This is at the very beginning and it
00:09
is the first objective in the beginning
00:12
to build the base map course.
00:15
We begin in the base map drawing file found in the drawings
00:19
folder of the data set and on the Settings
00:22
tab of the tool space right click on the drawing
00:25
name at the top.
00:27
So we can check the drawings units and geospatial
00:30
coordinates on.
00:32
Note that we are using meters and the coordinate zone
00:36
code is co 83 dash C on the Insert tab,
00:47
go to the Import group and select points from file.
00:52
Now on the import points dialog.
00:55
Select the plus icon and browse to the point folder of the data
00:59
set, we may need to change the files of type
01:03
to CSP so that the g.p.s.
01:06
control points file is displayed.
01:09
And then opened also note the extra bit of information
01:14
that is included at the end of the file name.
01:17
This helps us to know what the format of the data
01:20
is and can avoid point data that comes in 90 degrees in error
01:25
or shows up as a straight line in the dialog box.
01:29
Scroll to the bottom of the specified point file
01:32
format and select pnec d comma delimited
01:40
the preview window will pass the first few lines of the file.
01:44
So you can validate that you have chosen the correct format.
01:49
I will add the points to a new point group by checking the box
01:53
and creating a new group named g.p.s.
01:57
control when that is complete.
01:60
Make certain that there are no checked boxes
02:02
in any of the advanced options and then OK.
02:06
This import.
02:08
Now we see the new points on the prospect or tab
02:12
expand expanded the point group collection
02:14
by picking on the plus side right click on the points group
02:19
and select update to sync the new data.
02:23
Next do a quick test to see that the no display group is working
02:28
in the point group properties move the no display
02:31
group to the top of the stack and see that the points are now
02:36
not seen in the drawing canvas.
02:39
Return the g.p.s.
02:41
control group back to the top of the stack.
02:44
And now we can continue change the scale of the view
02:52
to 1 to 5,000 so that the Coco point markers and labels become
02:57
bigger and easier to see.
02:59
Let's check if this g.p.s.
03:00
points are in the correct location.
03:03
Select the location tab on the ribbon
03:06
and turn on the hybrid map.
03:08
So we can see a mix of aerial imagery and the map features
03:14
and now we see that the control points do appear correctly
03:18
in the area of our project.
03:20
Next, we will check the points with the drone captured
03:23
or the photo.
03:24
We need to use the map tools to accomplish this.
03:28
Use the map W space command to turn on the task pane
03:34
go to the display manager tab, I will temporarily
03:38
turn off the tool space panel to give us
03:40
some more room returning to the display manager.
03:44
Select the data icon and then select Connect to data.
03:49
This opens the data connect panel.
03:53
And you can see all of the different geospatial data types
03:56
that we can use.
03:58
Select Add raster image or surface connection.
04:02
You now have the choice to select either a single image
04:06
file or connect to a folder that might contain many image files.
04:12
We will select the single file option
04:15
and browse to the images folder of the course data set
04:19
and open the ortho image tiff file looking closely
04:32
at the coordinate system information,
04:34
we see that the image file has a different system
04:37
than that of the drawing.
04:39
These two systems are able to transform.
04:43
So the image will be located correctly in our base map
04:46
drawing click on.
04:48
Add to map and the image is connected
04:60
in the display manager.
05:01
The image can easily be toggled on and off.
05:05
Let's check for accuracy by zooming in on one
05:08
of the control points.
05:10
I will change the scale to 1 to 500
05:13
to get a smaller cocoa marker and label and zoom in even
05:18
closer to see how the g.p.s.
05:20
control matches the white panel points.
05:23
A nice feature of connected raster data
05:26
is the ability to re sample the data, which automatically
05:30
crops it to the view in some instances.
05:34
The image may also become more clear the g.p.s.
05:39
points are matched to the visible white panel points.
05:43
So our drone data is located accurately
05:46
to our small project area.
05:52
To restore the entire image use Zoom to extents.
05:58
Finally, we should compare the drone image
06:01
with the common Bing map imagery on the location tab.
06:07
Turn on the aerial map and zoom in closely
06:11
to the east edge of the orthophoto at mineral avenue.
06:16
Notice the misalignment.
06:18
This is expected.
06:20
And this is because the drone captured
06:22
image is much more accurately positioned to the real surface.
06:26
We use the Bing imagery for approximations
06:30
and we will use the drone ortho image for accurate details.
06:34
This concludes the first objective of this course.
06:37
And now you're ready to begin the.
Adding Control Points and Imagery – Practice Exercise
Task 1: Import the GPS land survey control points
Task 2: Validate the Location of the Control Points
Task 3: Use Map Tools to Add the Ortho Photo
Task 4: Validate the Ortho Image with the GPS Control Points
Task 5: Compare the Ortho Image with the Bing Maps Imagery
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