TY - JOUR
T1 - Visualization of Data Subject to Positive Constraints
AU - 
JO - Journal of Information and Computing Science
VL - 3
SP - 149
EP - 160
PY - 2024
DA - 2024/01
SN - 1
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jics/22839.html
KW - Visualization, Rational Function, Interpolation, Positive Surfaces, Free Parameters.   

AB - In this paper, first free parameters are constrained in the description of rational cubic function [6] 
to  preserve  the  shape  of  data  that  lies  above  the  straight  line.  Then,  rational  cubic  function  is  extended  to 
rational  bicubic  partially  blended  function  (Coons  patches).  A  local  positivity  preserving  scheme  is 
developed for positive data by  making  constraints  on free parameters  in the  description  of  rational  bicubic 
partially blended patches. We also develop at the end the constraints for visualizing a data that lie above the 
plane.