Color manager is an object that can be used to parse, manipulate, and convert color values. It can parse color definitions in several formats like hexadecimal, RGB, RGBA, HSL, HSLA, and colors by name. The object can change the color individual property values such as red, green, blue, hue, saturation, light values, and alpha channel. The manipulated colors can be converted to any of the supported formats.
Aspose.Cells for JasperReports allows you to exports reports from JasperReports and JasperServer in Microsoft Excel spreadsheet (XLS) format. It is provided as a single JAR file that can easily be deployed on machines running JasperReports or JasperServer. It exports Excel charts as editable charts rather than static pictures so that they can be edited manually in MS Excel.
JHeatChart is a one class Java API for generating heat map charts that was created because very few charting APIs seem to contain the facility to create heat maps. It is not a full featured charting API and cannot be used to other charts. The generated charts are created as Java Image objects, which can be incorporated into a GUI or saved to a file.
Aspose.Cells is a Java component for spreadsheet reporting without using Microsoft Excel. Other features include creating spreadsheets, opening encrypted Excel files, macros, VBA, Unicode, formula settings, pivot tables, and importing data from JDBC ResultSet. CSV, SpreadsheetML, PDF, ODS, and all file formats from Excel 97 to Excel 2007 are supported. It supports all advanced features of data management, formatting, worksheet, charting, and graphics.