<< Chapter < Page
  Digital signal processing - dsp     Page 9 / 24
Chapter >> Page >

Preview

The purpose of the program that I will present and explain in this module is to display a 3D surface using color (or shades of gray) to represent theelevation of each point on a 3D surface.

Constructor

The constructor for this class receives a 3D surface defined as a rectangular 2D array of values of type double . Each double value represents a sample point on the 3D surface. The surface values may bepositive, negative, or both.

When an object of the class is constructed, it plots the 3D surface using one of six possible formats representing the elevation of each point on the surfacewith a color or a shade of gray.

Parameters

The constructor requires four parameters:

  • double[][]dataIn
  • int blockSize
  • boolean axis
  • int display

The purpose of each parameter is as follows:

Datain

The parameter named dataIn is a reference to the 2D array of type double containing the data that describes the 3D surface.

Blocksize

The value of the parameter named blockSize defines the size of a colored square in the final display that represents a single input surfaceelevation value. For example, if blockSize is 1, each input surface value is represented by a single pixel in the display. If blockSize is 5, each input surface value is represented by a colored square having 5 pixels on each side (25 pixels in a square) .

The test code in the main method displays a surface having 59 values along the horizontal axis and 59 values along the vertical axis. Eachelevation value on the surface is represented in the final display by a colored square that is 2 pixels on each side.

Axis

The parameter named axis specifies whether optional red axes will be drawn on the display with the origin at the center as shown in Figure 1 .

Display

The parameter named display specifies one of six possible display formats. The value of display must be between 0 and 5 inclusive.

Values of 0, 1, and 2 specify the following formats:

Display = 0

This value for the display parameter specifies a Grayscale plot with a smooth gradient from black at the minimum to white at the maximum.

Display = 1

This value for the display parameter specifies a Color Shift plot with a smooth gradient from blue at the low end through aqua, green, and yellow to redat the high end. The minimum elevation is colored black. The maximum elevation is colored white.

Display = 2

This value for the display parameter specifies a Color Contour plot. The surface is subdivided into 23 levels and each of the 23 levels is represented byone of the following colors in order from lowest to highest elevation:

  • Color.BLACK
  • Color.GRAY
  • Color.LIGHT_GRAY
  • Color.BLUE
  • new Color(100,100,255)
  • new Color(140,140,255)
  • new Color(175,175,255)
  • Color.CYAN
  • new Color(140,255,255)
  • Color.GREEN
  • new Color(140,255,140)
  • new Color(200,255,200)
  • Color.PINK
  • new Color(255,140,255)
  • Color.MAGENTA
  • new Color(255,0,140)
  • Color.RED
  • new Color(255,100,0)
  • Color.ORANGE
  • new Color(255,225,0)
  • Color.YELLOW
  • new Color(255,255,150)
  • Color.WHITE

Note that some of the colors in the above list refer to named color constants in the Color class. Others refer to new Color objects constructed by mixing the specified levels of red, green, and blue.

Questions & Answers

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
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
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
While the American heart association suggests that meditation might be used in conjunction with more traditional treatments as a way to manage hypertension
Beverly Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Digital signal processing - dsp. OpenStax CNX. Jan 06, 2016 Download for free at https://legacy.cnx.org/content/col11642/1.38
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Digital signal processing - dsp' conversation and receive update notifications?

Ask