The second week

The second week

In the second week, three of us which includes TONG WU, XIUQI LIU and ZIANG XU attended the meeting with our supervisor in 5 February. The supervisor instructed us to determine the goals of this week and distribute different tasks to different members. In that meeting, we also determined which step of the coding should be completed in this week and what we were going to do in the lab in this Friday. To be specific, the team leader TONG WU was in charge of the coding of calibration and grabbing points and XIUQI LIU and ZIANG XU were in charge of the introduction and part of design part of the report. We showed the process of our project to our fourth member ABDULLA ALAMRI since he was absent for the first week due to some issues and we assigned part of testing of report to him.

In this Friday lab session, we finished the coding of calibration. The user can first choose the origin of x-axis, maximum of x-axis, origin of y-axis and maximum of y-axis one by one and fill in the real value in the figure one by one to finish the calibration. The testing is shown in Figure 1,2,3,4.

Fig.1 Result of calibrating

Fig.2 Result of calibrating

Fig.3 Result of calibrating

Fig.4 Result of calibrating

It can be seen that the four points were calibrated and displayed on the original figure. After the calibration the minimum and maximum values of x-axis and y-axis were displayed in the text window.

Fig.5 X,Y axis data displayed in text box

After calibration, the user can grab points by clicking on the points on the curve and the program will automatically turn the pixel value into real value and display the new curve in the preview box. The data of the points grabbed will be displayed in the table, which can be seen in the figure below.

Fig.5 Results of 'Grab points'

The next problem is how to zoom in and zoom off the figure. Moreover, the saving file function needs to be done in the next week. Moreover, we still cannot figure out how to attain the value of two curves at the same time. The group will try to solve the problem in next week.