There is no connection to the corner in this place, which is a minor problem. You can try using BO to solve this problem.
· bo o is the boundary in the map, you can click on the polyline to achieve internal clicking, pay attention to see if you walk the full circle, if there is a dotted line is successful.
Tap M to move to merge the two laps you just generated. At this point, you can delete the original parts and merge them into a complete line segment. Now you need to measure the length of this segment, and the length of the entire segment is ninety-two five. Since the accuracy of the measurement can be biased, it is necessary to look at the specific error.
A copy of C can be made to save the data.
・Trim TR, cut out the line below in the modification toolbar, and only keep the arc part. Looking at the characteristics of polylines, you can see that the lengths are eighty, thirty-eight, and nine, so the length is eight hundred, thirty-nine. The original length was one hundred and eighty, twenty-five, a difference of fourteen millimeters. It may be that there is an error in the field measurement, but this error is already very small, and the left and right deviations are five, eight, five, and there is no problem.
Check to see if the gap between eight zero and twenty-five is too big. Move them together and measure linear labels for d, i. The annotation is now zoomed in to seven or eight times, and you can see that the five, eight, and five are correct.
Measure the error of the seedling diagram, basically there is no big problem. It can be modified according to the field measurement results, and the radius of the circle should be unitary three zeros. The length on the left is two hundred and ninety-eight.
There is basically no big problem, just adjust the data and it can be done. After adjusting the data, you can view the following annotations, which are slightly error. Changing the radius of the circle to unitary three zeros is basically not much of a problem.
Labels should be marked on quadrant points of the circle.
The original label is 130, which can be modified manually. After drawing, it can be used as a basis. Change the annotation to 1730, 278, 477180, the error will not be too large. The position of fifteen and eighteen can be adjusted manually, and the length of the whole pot is no problem. The distance between five and ten can be adjusted by linear annotation, and the error is forty-seven, which is basically no problem and can be modified appropriately. To improve the actual size, simply adjust it on this screen. The difficulty in drawing the figure lies in this picture, and the tracing of other positions is mainly to determine the position of the potential. To make a good picture into a one-to-one ratio, you need to know how to use your phone's camera correctly. How to ensure the correct position of the image when taking pictures? This is what you need to know when using your phone's camera. To get the image right, you need to use your phone's accessibility features.
That's the end of the lesson, and the other detailed data is not much different. You can adjust it as needed, such as adjusting the scale a little. This data basically matches the size. Of course, if the measurement is inaccurate, a certain dimensional error will also occur. If you don't take a close shot when taking pictures, there will be a certain error in the drawn picture. To fully match the scale, scanning machinery is required.
In this case, it is more accurate to use scanning machinery. There will be a certain error in the way you use photography, and even if you shoot it very correctly, there will be a certain error. The scanning machinery can accurately scan the image, which is beyond the control of taking pictures.
This lesson is shared here.