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0001 -----2.9.0 ----- 0002 * Allow to copy&paste and to duplicate single objects in the project explorer 0003 * Support Mathieu functions via GSL 0004 * Added global settings for numbers 0005 * Support real scientific notation and improve other notations of axes label 0006 * Export worksheet to more image formats (jpg, bmp, ppm, xbm, xpm) 0007 * Improved range auto scaling 0008 * [spreadsheet]: 0009 * Allow to freeze the first column 0010 * [worksheet]: 0011 * Info Element - a new worksheet element to annotate curve values on the plot 0012 * Crosshair cursor mode in the plot 0013 * New themes "Monokai", "ggplot grey", "ggplot dark" 0014 * New curve symbols "heart" and "lightning" 0015 * DateTime support for Custom Points and for Histograms 0016 * Allow to specify text label's position in logical plot coordinates 0017 0018 -----2.8.2 ----- 0019 Bug fixes: 0020 * [CAS] 0021 * Fixed the regression introduced after the python2 backend was deprecated in Cantor 0022 * Warn about the potential data looses when a project with CAS content is opened but no CAS support is available 0023 * [worksheet]: 0024 * DateTime support for Custom Points and for Histograms 0025 * Fix "power of" notations for negative values, show "0" for zero and improve auto precision for small values for axis labels 0026 * Show all available symbols styles for CustomPoint, the last one was missing 0027 * Convert the plot range format to datetime also when the first histogram for datetime data was added to the plot 0028 * Properly restore the saved values column and also save the values formatting properties in the histogram 0029 * If the deleted columns are being restored, restore the column pointers also in the histograms 0030 * Properly react in the histogram when data columns are deleted or renamed 0031 * Save/load the values format in xy-curve 0032 * React on text changes for values prefix and suffix and not on return pressed event in the curve properties explorer 0033 * Fix log scale axis for one tick and ln-scale typo 0034 * Fix sqrt and square axis scales 0035 * adjust the range format (numeric vs. datetime) also when the the column of the first curve is changed and not only when a new curve is added 0036 * simplified the naming of the initial axes for the default plot types (box blot with four axes, etc.) - use "x" instead of "x axis 1", etc. 0037 * export to more image formats (jpg, bmp, ppm, xbm, xpm) 0038 * simplified the naming of the initial axes for the default plot types (box blot with four axes, etc.) - use "x" instead of "x axis 1", etc. 0039 * [spreadsheet] 0040 * show column statistics also for bigint columns 0041 * when selecting a column in the project explorer, make sure it becomes visible in the spreadsheet by scrolling horizontaly to its position 0042 * when removing or inserting rows in the spreadsheet, properly update the headers in the spreadsheet 0043 * [import] 0044 * Don't try to parse a netCDF file when the application was compiled without any support for netCDF, and similar for other formats 0045 * Show the last recently imported projects in a combobox also in ImportProjectDialog similar to how it's already done in ImportFileDialog 0046 * Don't show any error messages when the source file or local socket is empty when the import dialog is opened for the first time 0047 * Fixed ASCII import when start column > 1 0048 * Don't change the current selection in the Project Explorer when objects are being added or removed during undo or redo 0049 * Improved LaTeX support in export dialog and export of big spreadsheets 0050 * BUG 427190 - Fixed resetting parser error count on some platforms (Debian, Manjaro) 0051 * BUG 429110 - Support semicolon as function argument separator for locale with comma as decimal separator 0052 * BUG 429368 - Fix validation of custom model equation in fit dock 0053 * BUG 431535 - Save/Load value format 0054 * BUG 432291 - Show the relevant parts of the drop lines also when the data points are outside of the plot range 0055 0056 -----2.8.1 ----- 0057 * [worksheet] allow to change the background color for axis labels (default: transparent) 0058 * [worksheet] allow to copy the plot cursor cordinates 0059 * [spreadsheet] better auto-detection of datetime format for values pasted in the spreadsheet 0060 * [live data] allow to add the timestamp column for all network live sources (TCP/UDP), not only for MQTT 0061 * [live data] better error handling and user notifications 0062 0063 Bug fixes: 0064 * Fix compiling with Cantor 20.08.X and X>0 0065 * Fix drawing lines between points of datetime data 0066 * Fix drawing axis tick label in color when in HTML mode 0067 * Fix size of dock widgets when changing between them 0068 * BUG 389920 - remove sub-window shadow remnants when closing the project 0069 * BUG 428029 - changing font of text label for newer Qt versions 0070 * BUG 428813 - full screen not restored (also fixed full screen on macOS) 0071 * BUG 428698 - Don't crash when doing drag&drop between different main windows 0072 * Fix missing settings dialog on macOS 0073 * Parser improvements (found in "Generate Function Values"): 0074 * Fix Crash using variable name of pre-defined functions as function ("sin()") 0075 * Allow variable names containing function names ("sina") 0076 * Correctly remove variables when changing name 0077 * Use application number locale 0078 * insert predefined functions with correct number of arguments 0079 0080 -----2.8 ----- 0081 * Improved DateTime data support 0082 * Show the size of the members in the JSON file in the import file dialog 0083 * [worksheet] In the Export Worksheet Dialog allow to export to the clipboard 0084 * [worksheet] Allow to move plots, text labels and legend with arrow keys 0085 * [worksheet] Image worksheet element 0086 * [worksheet] Reference line on the plot 0087 * [worksheet] Support for imperial units for geometry and size settings of objects 0088 * [worksheet] Improve axes major and minor tick settings 0089 * [spreadsheet] show infinite values as such and not as NaN 0090 * [spreadsheet] support big integer (64 bit) as data type 0091 * [spreadsheet] column normalization methods "divide by max", "divide by min", etc. 0092 * [spreadsheet] Tukey's ladder of powers 0093 * [spreadsheet] added the size of the data set, its mode, 1st and 3rd quartiles and IQR to the column statistics 0094 * [analysis] calculate and expose the rough values as the result of a smooth (data = smooth + rough) 0095 * Allow to open Cantor and Jupyter projects 0096 * [Windows] improved craft blueprint and installer package 0097 * [macOS] added support for touchbar 0098 * Support global user specified decimal separator 0099 * Improved locale support in number input fields 0100 * Extended "About"-Dialog 0101 0102 Bug fixes: 0103 * BUG 421193 - import float(4) data from hdf5 0104 * BUG 418390 - Ignore infinite values (created in CAS worksheets for example) in curves 0105 * BUG 412455 - Don't crash (sporadically) when opening the color scheme menu 0106 * BUG 415214 - Better algorithm to draw the error bar caps 0107 * BUG 413397 - Properly handle removal of columns in the spreadsheet model 0108 * BUG 413401 - In plot data dialog, don't add new worksheets as children to workbooks, use the proper parent aspect 0109 * Fix Cantor support and Unicode characters on Windows 0110 * Fix evaluating fit residuals 0111 0112 -----2.7 (24.10.2019)----- 0113 New features: 0114 * Allow to move objects (drag&drop) to different folders in the project explorer 0115 * [spreadsheet] allow to insert multiple rows and columns in one step 0116 * [spreadsheet] improved the handling of calculated columns (values calculated via a formula): 0117 * Allow to automatically update the calculated column on data changes in the variable columns 0118 * Invalidate the calculated column if one of the variable columns was deleted 0119 * In "Functions Values" dialog highlight the variable column combobox red if the variable column was deleted in the project 0120 * In "Functions Values" dialog don't allow to select columns to be calculated as variable columns (avoid circular dependencies) 0121 * In "Used in" context menu of a column show all other calculated columns where this column is used as a variable 0122 * [spreadsheet] when pasting data into empty columns, automatically convert their type to the type of the data to be pasted 0123 * Automatically update curves if a data column deleted before was re-added again (during the import or manually) 0124 * When auto-scaling in the plot take also the error bars into account, if available 0125 * For live data sources allow to save the relative path to the data source 0126 0127 UX improvements: 0128 * in the "Import Data" dialog show the history of the recently imported files 0129 * Improved the selection of curves in the plot that are near to or behind each other 0130 * BUG 408529 - Allow to use DEL to delete cells in spreadsheet and matrix 0131 * BUG 408537 - Allow to insert multiple rows and columns in the spreadsheet in one step 0132 * Added translations to Windows and macOS packages 0133 * Allow to stop the current selection in the plot with ESC 0134 * BUG 410855 - Seed the random number generator with the current time in order not to generate repetitive numbers in the spreadsheet. 0135 0136 Performance: 0137 * Increased the plotting speed for curves with many data points by removing points which are shown on the same pixel in the scene 0138 0139 Bug fixes: 0140 * Disable auto-scale when zooming, otherwise wrong (= auto scaled) data region is shown after project save&open 0141 * [macOS] fix determining number of lines of data files 0142 * Bug 408530 - correctly show error bars for data source columns having NANs 0143 * Bug 407847 - fixed the broken project import 0144 * Bug 411122 - fixed missing option for the resolution of PNG files in the export dialog 0145 * BUG 406805 - support for directory structures in ROOT files 0146 * [data fitting] handle weighted fitting with zero errors correctly 0147 * [data fitting] allow weighted fitting with data source from curve 0148 * [data fitting] fix function for calculating bounded values 0149 * [nsl] fix memory leak in line simplification (Douglas Peuker variant) 0150 * [nsl] fix bug in calculating Bessel polynomials on Windows (used in Bessel filter) 0151 0152 -----2.6 (19.04.2019)----- 0153 New features: 0154 * Histogram 0155 * Import from MQTT sources 0156 * Import of ROOT (CERN) TH1 histograms 0157 * Import of Ngspice raw files (ASCII and binary) 0158 * Import of data in JSON format (JSON arrays and objects) 0159 * Improved import of NetCDF files 0160 * Added file type specific summary and content for special file types in info box of import dialog 0161 * Convolution/Deconvolution of data sets (sampling interval, linear/circular, normalization, wrap, standard kernel) 0162 * Cross-/Autocorrelation of data sets (sampling interval, linear/circular, normalization) 0163 * Allow to specify the number format when exporting spreadsheet and matrix 0164 * Improved user interface for data fitting (add fit function preview, show parameters directly, make options foldable) 0165 * [spreadsheet] when filling a float column with row numbers, automatically convert its type to integer 0166 * [spreadsheet] when filling an integer column with function values, automatically convert its type to float 0167 * [spreadsheet] data manipulation: add/subtract/multiply/divide for column values 0168 * [spreadsheet] export to SQLite 0169 * [matrix] data manipulation: add/subtract/multiply/divide for matrix values 0170 * [worksheet] Allow to specify different border shapes for labels (rectangle, eclipse, etc.) 0171 * [worksheet] Allow to rotate plot legends 0172 * [worksheet] Better positioning of rotated axis tick labels 0173 * [worksheet] Allow to make plots not-interactive (ignore mouse drag and wheel events) to avoid unwanted occasional panning and zooming 0174 * Allow to connect to SQL databases via ODBC 0175 * Show the amount of consumed memory in the status bar (optional) 0176 * Allow to change the settings for different computer algebra systems (Maxima, etc.) directly in LabPlot (embedd Cantor's settings widgets) 0177 0178 Bug fixes: 0179 * Fixed several problems in live data support 0180 * [spreadsheet] properly calculate function values out of integer x-values 0181 * [matrix] fix editing integer values 0182 * [import] fix preview update and add missing close of netcdf files 0183 * Don't crash when a scaling factor equal to zero was set for axis 0184 0185 -----2.5 (21.06.2018)----- 0186 New features: 0187 * Support for reading and plotting of live-data 0188 * Improved data fitting 0189 * Automatically guess parameter of custom models 0190 * Better result presentation 0191 * Support different weight types 0192 * Consider given x- and y-error when fitting (can be switched off) 0193 * Show t statistics, P > |t| and confidence interval 0194 * Calculate p-value for chi-square and F test in nonlinear fitting 0195 * added fit models for most statistical distributions 0196 * Improved theming 0197 * Apply themes to worksheet and to all its children 0198 * Respect theme settings also in plot legends and labels 0199 * Allow to disable theming in worksheets and plots after a theme was selected 0200 * Show currently active theme in the "Apply theme" button 0201 * New application option in the settings for the default theme used for new worksheets. 0202 * Support different data types 0203 * auto detect integer and datetime data in import 0204 * support number locale and datetime formats 0205 * improved data type support in spreadsheets 0206 * Import from SQL databases (tables or custom queries) 0207 * Import Origin OPJ projects 0208 * Much better support for Windows and macOS 0209 * Syntax highlighting for LaTeX in the text label 0210 * Allow to set the background color for LaTeX labels 0211 * Support Hermite polynomials from GSL 2.4 0212 * Support error functions and related functions from libcerf 0213 * "Used in" sub-menu in column contex menu for faster navigation to the curves consuming the column 0214 * Direct application of analysis functions (smoothing, interpolating, etc.) on the ploted data via curve's context menu 0215 * Direct application of analysis functions on the data in the spreadsheet and plotting of the results via spreadsheet's context menu 0216 * Drag columns in the project explorer and drop them on plots (either in a worksheet view or in the project explorer) to create curves 0217 * "Show last N points" and "Show first N points" data ranges in cartesian plot 0218 * Added CLI option --presenter to start LabPlot directly in the presenter mode 0219 * Added CLI parameter to directly open project files (LabPlot or Origin) 0220 * Allow drag&drop of projects files (LabPlot and Origin) on the main window to load the project 0221 * Allow drag&drop of data files on the main window to import the data 0222 * Show tooltips for the supported mathematical functions and constants in the expression text field 0223 * Automatically switch to the scientific representation for numbers bigger than 10^4 on the axis tick labels 0224 * Automatically allow the latex typesetting in the application after the latex environment was installed later without making the user to go to the settings dialog 0225 * Allow to change the color scheme for the application 0226 * Smooth and animated zooming in the worksheet view 0227 * Allow to add text labels to plots 0228 * Improved building with MSVC, Intel and PGI compiler 0229 0230 Performance improvements: 0231 * Faster copy&paste in the spreadsheet 0232 0233 Bug fixes: 0234 * Bug 379877 - masked rows in spreadsheet not restored in project 0235 * Calculation of fit results corrected 0236 * Axes now support values larger than FLT_MAX (~10^38) and smaller than FLT_MIN (~10^-38) 0237 * When a LabPlot project is being droped in the main window, load the project directly instead of showing the import file dialog 0238 * Correctly save and restore masked cells 0239 * Don't crash if the rc-file was not found during the startup 0240 0241 -----2.4 (09.04.2017)----- 0242 New features: 0243 * Support themes for plots 0244 * Import and editing of FITS data files 0245 * Data reduction by removing data points using multiple algorithms 0246 * Numerical differentiation and integration with several options 0247 * Many new pre-defined fit models (Gompertz, Weibull, Log-Normal, Gumbel, etc.) sorted in categories 0248 * Fit parameter now support fixed values, lower/upper limits and use Unicode 0249 * Fit model and random number distribution formulas are now rendered with LaTeX 0250 * Support user specified x range in all analysis functions 0251 * Allow to enter complete LaTeX documents in text labels 0252 * Configuration parameter to use different LaTex engines (LuaLaTex, XeLatex, pdfLaTex, LaTex) 0253 * Disable LaTeX typesetting if no LaTex installation (and other required tools) were found at runtime 0254 * Presenter mode for worksheets 0255 * Support for Mac OS 0256 * Support for Julia's vectors and tuples in CAS worksheets (requires Cantor v. 16.12 or higher) 0257 * Allow to jump directly to the data source spreadsheet via XYCurve's context menu 0258 * Select and delete multiple objects in project explorer 0259 * Improved and extended internal parser for mathematical expressions 0260 * Copy of worksheet elements as image to the clipboard via CTRL+C 0261 0262 Bug fixes: 0263 * BUG: 361326 - Allow to select curves with overlapping bounding boxes 0264 * Correctly load worksheet sizes from saved templates 0265 * Fixed crash when removing columns in spreadsheet 0266 * Fixed crash when fitting using GSL >= 2 0267 * List of available functions corrected 0268 * Constants are now available with full accuracy 0269 * Windows: Import of files and open recent files fixed 0270 0271 -----2.3 (23.07.2016)----- 0272 New features: 0273 * Integration of Cantor - Support for different open-source computer algebra systems 0274 * Statistics on spreadsheets and matrices 0275 * Export of spreadsheets and matrices to LaTeX tables 0276 * Interpolation of data including different splines, cosine, exponential, cubic Hermite (Catmull-Rom, cardinal, Kochanek-Bartels) and rational functions 0277 * Data smoothing using moving average (centered or lagged), percentile filter or Savitzky-Golay algorithm 0278 * Fourier filter (low pass, high pass, band pass, band reject) with ideal, Butterworth, Chebychev I+II, Legendre or Bessel-Thomson filter 0279 * Fourier transform with many window functions (Welch, Hann, Hamming, etc.) calculating magnitude, amplitude, power, phase, dB, etc. and supporting 0280 one/two sided spectrum with or without shift and x scaling to frequency, index or period 0281 * Filter and search capabilities in the drop down box for the selection of data sources 0282 * Sigmoid function as a new pre-defined fit model 0283 * Support for compiling on Microsoft Windows 0284 0285 Performance improvements: 0286 * Faster generation of random values 0287 * Global option to enable/disable the double-buffering for faster painting of curves (enabled on default) 0288 0289 Bug fixes: 0290 * Save and restore last used setting in RandomValuesDialog 0291 * Update axis title shape on title rotations correctly 0292 * Save and restore custom column widths in the spreadsheet 0293 * Fixed sporadic crashes during project close 0294 0295 -----2.2 (29.03.2016)----- 0296 New features: 0297 * Datapicker - tool for extracting curves and data points from imported images 0298 * Custom point on the plot with user-defined position and appearance 0299 * Accept drag&drop events 0300 * Support GSL 2.x 0301 * Import and export dialogs save and restore their settings and sizes 0302 0303 Performance improvements: 0304 * Faster rendering of the image view of the matrix 0305 0306 Bug fixes: 0307 * BUG: 354744 - make setting of range auto scaling in CartesianPlot undo/redo-able 0308 * Removed couple of hard coded sizes given in pixels for better user-experience on hidpi-displays 0309 * Fixes the bug with disabled undo/redo-actions in after the undo-history was cleared 0310 * Keep the information about the columns to be shown in the project explorer after project close 0311 * Fixed some bugs in painting of the selection band on the worksheet 0312 * Allow to open gz- and bz2-compressed LabPlot project files on the command line interface 0313 0314 -----2.1 (25.10.2015)----- 0315 New features: 0316 * New Matrix view for handling matrix data. 0317 * Workbook - a new container for grouping several objects of type Spreadsheet and/or Matrix. 0318 * Import of binary, image, NetCDF and HDF data into spreadsheet or matrix. 0319 * Visual HDF and NetCDF parser to view content of files and import data sets. 0320 * Preview of all supported file types in import dialog. 0321 * Transparently import compressed data files. 0322 * In xy-curve the points may not be connected by the line if there are NANs in-between. This behaviour is controlled by the parameter "skip gaps". 0323 * Multiplier of Pi format of the plot axis for periodical functions. 0324 * New operations on columns in Spreadsheet - reverse, drop values and mask values. 0325 * Formula used to generate the values in a column is stored and can be changed/adjusted in the formula dialog afterwards. 0326 * Curve filling: the area below, under, left to or right to the curve can be filled. 0327 * Support for multiple variables in "Function Values"-dialog - new data in the spreadsheet can be calculated out of multiple columns. 0328 0329 Performance improvements: 0330 * Speeded up the creation of new columns during the import 0331 0332 Bug fixes: 0333 * Fixed wrong behaviour when doing "zoom&select" in a plot and then deselecting the plot - it was not possible anymore to select the plot again on the worksheet. 0334 0335 -----2.0.2 (15.03.2015)----- 0336 New features: 0337 * Plot 2D-curves defined by mathematical equations in cartesian and polar coordinates or via a parametric equation. 0338 * Linear and non-linear regression analysis. Several predefined fit-models are provided. User-defined models are also possible. 0339 * Besides fixed worksheet sizes (predefined sizes like A4 etc. or user-defined), complete view size can be used. All sizes are automatically adjusted on resize. 0340 * Different axis arrow types. 0341 * "select region and zoom in", "select x-region and zoom in", "select y-region and zoom in" functions for cartesian plot. 0342 * Rounded border for several worksheet objects (plot area, legend etc.) 0343 * Hover effect for axis, curve and text label. 0344 * Added a MessageBox - ask befor deleting worksheet objects. 0345 * Added three new types for drop lines - "zero baseline", "min baseline" and "max baseline" 0346 * Fill the selection in Spreadsheet with a constant value provided by the user 0347 * Fill columns with uniform and non-uniform random numbers, several distributions are available. 0348 * Fill columns with function values 0349 * Allow custom resolutions for PNG-export 0350 * Export of the spreadsheet to a text file. 0351 * Simultaneous zooming and navigation accross multiple plots. 0352 * Implemented "Powers of 10/2/e" for the axis tick labels 0353 0354 Bug fixes: 0355 * Don't crash when trying to create a plot in case no rc-file was installed. 0356 * Don't allow to select unwanted objects in TreeViewComboBox in ImportDialog and XYCurveDock. 0357 * Corrected painting of background images in plot area and legend. 0358 * BUG: 330723 - fixed weird selection in spreadsheet. 0359 * BUG: 330774 - fixed wrong positioning of axis on orientation changes. 0360 * Update main window title when project name is changed 0361 0362 -----2.0.1 (01.03.2014)----- 0363 Bug fix release. Solved issues: 0364 * Fixed wrong scaling of legend's text labels in pdf-export 0365 * Fixed memory corruption in CartesianPlotDock that can lead to crashes 0366 0367 -----2.0.0 (19.01.2014)----- 0368 First stable release of LabPlot2. LabPlot2 is a complete rewrite of LabPlot1 and lacks in this release a lot of features available in the predecessor. On the other hand, the GUI and the usability is more superior as compared to LabPlot1 and there are several new features that were not available in LabPlot1. 0369 0370 Brief summary of features and capabilities of LabPlot2 implemented in the first release: 0371 * project-based management of data 0372 * created objects are organized in a tree and are visualized and accessible in the project explorer 0373 * for a better management of objects, additional folders and sub-folders can be created within a project 0374 * spreadsheet with very basic functionality is available for manual data entry 0375 * "file data source" can be used to import a file and to let LabPlot2 watch for changes in that file 0376 * external data from an ascii file can be also directly imported to a spreadsheet for further editing 0377 * worksheet is the main object where plots, labels etc. are placed on 0378 * several zooming functions for the worksheet 0379 * only cartesian plot is implemented in the first release 0380 * arbitrary number of freely positionable axes is possible 0381 * xy-curve is implemented. As the data source for the x- and y-values columns either from a spreadsheet 0382 or from a file data source can be used 0383 * several zooming and "movement" functions are available for the plots which help to navigate through data 0384 * legend for xy-plots 0385 * a lot of properties of the worksheet elements can be edited in a very easy way in the corresponding dock widgets 0386 * plots on the worksheet can be put into a horizontal, vertical or grid layouts 0387 * export of worksheet (entire worksheet or current seleciton) to pdf, eps, png and svg