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Listing 25. Processing the other three ranges.
}else if(((int)data[row][col]>63)&&((int)data[row][col]<= 127)){ int temp = 4 * ((int)data[row][col]- 64); green = 255;blue = 255 - temp;}else if(((int)data[row][col]>127)&&((int)data[row][col]<= 191)){ int temp = 4 * ((int)data[row][col]- 128); green = 255;red = temp;}else if(((int)data[row][col]>191)&&((int)data[row][col]<= 254)){ int temp = 4 * ((int)data[row][col]- 192); red = 255;green = 255 - temp; }//end else

Gradient from aqua to green

The second range produces a smooth gradient from aqua to green. In this range, the green color value is held constant at 255 and the blue color value iscaused to decrease in inverse proportion to the normalized color value.

Gradient from green to yellow

The third range produces a smooth gradient from green to yellow. (Yellow is produced by mixing equal amounts of red and green.) Within this range, green is held constant at a value of 255 and the value of red increases indirect proportion to the normalized elevation value.

Gradient from yellow to red

The fourth range produces a smooth gradient from yellow to red. Within this range, the value of red is held constant at 255 and the value of green decreasesin inverse proportion to the normalized elevation value.

A homework assignment

A useful homework assignment would be for you to modify the program as follows:

Subdivide the total range into eight sub ranges instead of four as I did. Choose four additional colors that you can produce by mixing variouslevels of red, green, and blue. Modify the code to cause the colors to vary with a smooth gradient through those eight colors in succession.

The rest of the overridden paint method

The rest of the overridden paint method for this class is essentially the same as the code that I explained in Listing 16 through Listing 18 . Having set the current plotting color, the method goes on to paint a square of pixels in that color at the correct location. Then it draws the optional redaxes if specified. Therefore, I won't repeat that explanation. You can view this code in Listing 29 near the end of the module.

The class named CanvasType1scale

The inner class named CanvasType1scale is used to construct a color scale that matches the color algorithm used in the class named CanvasType1surface .

The overridden paint method for this class replicates the color algorithm in the overridden paint method for the CanvasType1surface class.

Except for the difference in the overridden paint method, the structure of this class is the same as the class named CanvasType0scale , which I discussed earlier beginning with Listing 19 . Therefore, I won't repeat that discussion here. You can view the class in Listing 29 near the end of the module.

Color Contour plot format

The class named CanvasType2surface is an inner class used to instantiate an object that plots a surface where each elevation on the surfaceis represented by a color taken from a color palette containing a finite number of colors. As written, the color palette contains 23 different colors and shadesof gray, but you can easily increase that number if you would like to do so.

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Digital signal processing - dsp. OpenStax CNX. Jan 06, 2016 Download for free at https://legacy.cnx.org/content/col11642/1.38
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