change tps plotting and legend to use plot instead of scatter to improve performance

Closes #234 (closed)

This MR actually doesn't improve the performance of plotting. For some cases it even slightly slow down plotting speed. However, it speed up the speed of showing the highlight box when cmd/ctrl + click on a point for information.

Ex: 6407.sdr, channel LH1's TPS, time from the start of on_pick_event() until end of on_ctrl_cmd_click():

• develop branch: 1.26s
• This branch: 0.67s

Plotting LH1's TPS

• develop branch: 3.6s
• This branch: 3.3s

Ex:Q330_5281.sdr, HHE's TPS

• develop branch: 0.975s
• This branch: 1.048s

Ex:5083.sdr

develop branch:

• LH1 TPS time: 21.69738221168518
• BH1 TPS time: 239.42422819137573
• HH1 TPS time: 409.018563747406

This branch:

• LH1 TPS time: 20.051087856292725
• BH1 TPS time: 95.44239091873169
• HH1 TPS time: 333.11667704582214

When plot all channels

develop branch:

• LH1 TPS time: 71.20173382759094
• LH2 TPS time: 75.62472915649414
• LHZ TPS time: 80.02365779876709
• BH1 TPS time: 816.4232420921326
• BHZ TPS time: 866.268630027771
• BH2 TPS time: 935.9406130313873
• HHZ TPS time: 1822.6974408626556
• HH1 TPS time: 1834.4737071990967
• HH2 TPS time: 1842.444128036499

This branch:

• LH1 TPS time: 65.75834012031555
• LHZ TPS time: 69.33358788490295
• LH2 TPS time: 73.3008508682251
• BH1 TPS time: 713.9739570617676
• BHZ TPS time: 720.5219311714172
• BH2 TPS time: 728.0735080242157
• HHZ TPS time: 1414.3021039962769
• HH1 TPS time: 1426.1622381210327
• HH2 TPS time: 1434.9592089653015

assigned to @ldam

added 2 commits

• 0f6bb3a7 - add key 'TPS_MARKER' to Z_ORDER
• 524c3fad - add unittest for get_tps_time_by_color_for_a_day

Compare with previous version

requested review from @kienle

changed the description

Can you post some time measurement so we can see how much faster this MR is compared to develop?

changed the description

changed the description

changed the description

added 1 commit

• 207a3b79 - change variable name to be more descriptive

Compare with previous version

requested review from @kienle

resolved all threads

approved this merge request

added 25 commits

• 207a3b79...6d9db698 - 24 commits from branch develop
• 02eb874b - Merge branch 'develop' into change_plotting_TPS_to_improve_performance

Compare with previous version

merged

mentioned in commit f2cdbcc6