Graphically show Psychrometric Chart for HVAC design in SI unit.

Input based on any two inputs as mentioned below:
Dry bulb and Wet bulb
2. Dry bulb and Relative Humidity
3. Dry bulb and Dew Point

You may add line by drop down menu to select the added points according to above input.
There are 5 methods to create specific points or lines as follows:
   1. by 2 point to create line
   2. by 2 point and mixing ratio to create a line and a point
   3. by 1 point and temperature to create a line and a point
   4. by 2 point to create a crossing point
   5. by 1 point and SHF to create a line and a point


If you click any point or line, it will pop up relevant information above it.
All the information shown in Psychrometric Chart is in graphic, it will let user to easy have an image for the correctness of the design.

You can save it as record or export it to easy for sharing. For graphic, you may capture the screen.