Usare Gd Library Con Php Funzioni Figure Grafici E Gradienti Book PDF, EPUB Download & Read Online Free

Usare GD library con PHP, funzioni, figure, grafici e gradienti
Author: Antonio Taccetti
Publisher: Antonio Taccetti
ISBN: 8892563904
Pages:
Year: 2016-03-07
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Questa guida è la versione e-book dei volumi cartacei a colori “PHP grafica dinamica, funzioni e figure” e “PHP grafica dinamica, grafici e gradienti” raccolti in un’unica pubblicazione (giugno 2016). La prima parte descrive il set di istruzioni PHP dedicato alla grafica dinamica, denominato GD Library, in grado di creare e manipolare immagini png, jpeg, tiff, gif ecc. L'utilità della libreria è enorme, si pensi alla creazione in tempo reale di grafici e report o l’applicazione di effetti speciali, fino all’implementazione di copyright anche senza modificare l’immagine originale. Gli script della guida sono descritti e commentate passo-passo in lingua italiana. Alla presentazione di ogni nuova funzione, per quanto possibile, sono utilizzate solo quelle descritte in precedenza in modo da rendere l'apprendimento facile e graduale. - Creazione di nuove immagini, caricamento in memoria di esistenti, unione, rotazione, ribaltamento e fusione d'immagini con trasparenze e filtri. - Descrizione del canale Alpha per trasparenza, opacità, dissolvenza e miscelazione fra immagini sovrapposte. - Uso delle funzioni della famiglia Copy per trattamento immagini, imagecopyresized(), imagecopymerge(),imagecopyresampled(). - Impiego e limitazioni dei font a corredo della libreria e facoltà dei font TrueType esterni inglobabili con realizzazioni truecolor, rotazioni, inclinazioni, ribaltamenti, ombreggiature ecc... - Manipolazione immagini con effetti speciali mediante imagefilter() della quale sono descritte le 11 varianti applicate singolarmente o in combinazione fra loro. Mostrati e descritti script che svolgono operazioni affini ai filtri in dotazione ma con codice PHP aperto (e quindi modificabile) per essere adattato alle proprie esigenze. La seconda parte illustra come creare grafici lineari, a barre, con immagini del prodotto analizzato, a torta con legenda circolare, 2d e 3d e scelta automatica dei colori. Posizionamento di valori e legende in qualsiasi punto e per i diagrammi circolari anche intorno ad essi finanche evidenziandone settori mediante estrazione di porzioni. Maschere per estrarre porzioni di qualsiasi forma da immagini e creazione di poligoni 3d. Generazione dinamica di stelle con quantità di punte, rotazione e colori a scelta. Ellissi e spirali ruotate, logotipi ed emoticons dinamiche. Frasi su circonferenze con calcolo dimensioni dei font TrueType Gradienti lineari e 2 o più colori, sferici, e poligonali. Tutti gli script di questa guida operano esclusivamente con le funzioni GD library di PHP, senza uso di classi o software aggiuntivi. Gli esempi del libro sono anche implementati in pagine PHP dinamiche sul sito dell'autore, dove, cambiando i valori creativi delle immagini esse vengono dinamicamente ricostituite sui nuovi parametri. Gli esempi e gli script, dei quali è disponibile il download, possono essere copiati, modificati e utilizzati senza chiedere autorizzazioni.
App Inventor 2 con database MySQL
Author: Antonio Taccetti
Publisher: Antonio Taccetti
ISBN: 6050441677
Pages:
Year: 2016-05-19
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App Inventor 2 con database MySQL è una guida passo-passo per scrivere applicazioni Android che utilizzano database MySQL residenti in Internet. Il compito è svolto in sinergia fra i componenti Web, WebWevier e Sharing di App Inventor e database MySQL. La trasmissione dati fra App Android e database MySQL è realizzata mediante interfaccia php appositamente scritta e ampiamente documentata. Con questo metodo le App assemblate con App Inventor possono condividere un database su server remoto il cui contenuto è possibile aggiornare utilizzando un normale browser web. Ciò significa che è possibile distribuire App il cui contenuto può cambiare nel corso del tempo, semplicemente cambiando i dati nel database. Azioni implementate: memorizzazione, modifica, cancellazione, ordinamento, recupero e trasferimento record dal database MySQL remoto al dispositivo mobile Android. Condivisione dei dati importati mediante il componente Sharing. In questa guida sono incluse spiegazioni dettagliate, esempi e link per scaricare la App Android, database e codice php. Tutti gli esempi sono descritti e commentati in lingua italiana. Una volta fatto il download, i file sono già predisposti ad essere caricati su webserver e dispositivi Android per essere usati immediatamente. Sulla scorta di queste nozioni sarà possibile creare un proprio sistema App Android-php-MySQL personalizzato. Per chi si considera principiante, nella parte database è descritto php/MySQL essenziale al funzionamento di questo applicativo e fornite spiegazioni su come procurarsi web server a basso costo o gratuiti per le proprie esigenze. Per la parte App Inventor del MIT (Massachusetts Institute of Technology), chi volesse approfondire questa tecnologia nel suo complesso alla pagina web del MIT sono recensite guide anche in lingua italiana. Se le vostre App necessitano di lavorare con i dati, questo e-book può fare per voi!
Trajectory Planning for Automatic Machines and Robots
Author: Luigi Biagiotti, Claudio Melchiorri
Publisher: Springer Science & Business Media
ISBN: 3540856293
Pages: 514
Year: 2008-10-23
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This book deals with the problems related to planning motion laws and t- jectories for the actuation system of automatic machines, in particular for those based on electric drives, and robots. The problem of planning suitable trajectories is relevant not only for the proper use of these machines, in order to avoid undesired e?ects such as vibrations or even damages on the mech- ical structure, but also in some phases of their design and in the choice and sizing of the actuators. This is particularly true now that the concept of “el- tronic cams” has replaced, in the design of automatic machines, the classical approach based on “mechanical cams”. The choice of a particular trajectory has direct and relevant implications on several aspects of the design and use of an automatic machine, like the dimensioning of the actuators and of the reduction gears, the vibrations and e?orts generated on the machine and on the load, the tracking errors during the motion execution. For these reasons, in order to understand and appreciate the peculiarities of the di?erent techniques available for trajectory planning, besides the ma- ematical aspects of their implementation also a detailed analysis in the time and frequency domains, a comparison of their main properties under di?erent points of view, and general considerations related to their practical use are reported.
Dynamics of Machinery
Author: Hans Dresig, Franz Holzweißig
Publisher: Springer Science & Business Media
ISBN: 3540899405
Pages: 544
Year: 2010-07-27
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Dynamic loads and undesired oscillations increase with higher speed of machines. At the same time, industrial safety standards require better vibration reduction. This book covers model generation, parameter identification, balancing of mechanisms, torsional and bending vibrations, vibration isolation, and the dynamic behavior of drives and machine frames as complex systems. Typical dynamic effects, such as the gyroscopic effect, damping and absorption, shocks, resonances of higher order, nonlinear and self-excited vibrations are explained using practical examples. These include manipulators, flywheels, gears, mechanisms, motors, rotors, hammers, block foundations, presses, high speed spindles, cranes, and belts. Various design features, which influence the dynamic behavior, are described. The book includes 60 exercises with detailed solutions. The substantial benefit of this "Dynamics of Machinery" lies in the combination of theory and practical applications and the numerous descriptive examples based on real-world data. The book addresses graduate students as well as engineers.
Geothermal Energy
Author: William E. Glassley
Publisher: CRC Press
ISBN: 1482221748
Pages: 423
Year: 2014-10-13
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An In-Depth Introduction to Geothermal Energy Addressing significant changes in the energy markets since the first edition, Geothermal Energy: Renewable Energy and the Environment, Second Edition expounds on the geothermal industry, exploring the expansion, growth, and development of geothermal systems. This text covers every area of geothermal energy, including environmental and economic issues, and technological advancements. Considers the Vast Technological Achievements within the Geothermal Industry Factoring in new concepts for distributed generation, hybrid technologies, and the development of Enhanced Geothermal Systems (EGS), the book incorporates real-world examples designed to illustrate the key aspects of chapter topics. It provides case studies in nearly every chapter, and includes examples from the U.S., Iceland, France, and Japan. Contains comprehensive, quantitative, and rigorous treatment of the geology, geochemistry, and geophysics of geothermal resources, and how they impact exploration, resource assessment, and operations Provides a state-of-the-art description of current Enhanced Geothermal Systems (EGS) Presents an objective description of the most recent economic comparisons including all energy resources Covers environmental issues of energy use and quantitative descriptions of the relative impacts of all renewable and non-renewable energy resources Describes geothermal resources from a global perspective, including direct use and geothermal heat pump applications, as well as power production Geothermal Energy: Renewable Energy and the Environment, Second Edition can be used for undergraduate coursework; as a reference for designers, planners, engineers, and architects; and as a source of background material for policymakers, investors, and regulators.
Substituent constants for correlation analysis in chemistry and biology
Author: Corwin Hansch, Albert Leo
Publisher: John Wiley & Sons
ISBN:
Pages: 339
Year: 1979
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Polycentric Monarchies
Author: Pedro Cardim
Publisher: Apollo Books
ISBN: 1845195442
Pages: 241
Year: 2012
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Having succeeded in establishing themselves in Europe, Asia, Africa and the Americas, in the early 16th century Spain and Portugal became the first imperial powers on a worldwide scale. Between 1580 and 1640, when these two entities were united, they achieved an almost global hegemony, constituting the largest political force in Europe and abroad. Although they lost their political primacy in the seventeenth century, both monarchies survived and were able to enjoy a relative success until the early 19th century. The aim of this collection is to answer the question how and why their cultural and political legacies persist to date. … Part I focuses on the construction of the monarchy, examining the ways different territories integrated in the imperial network mainly by inquiring to what extent local political elites maintained their autonomy, and to what a degree they shared power with the royal administration. Part II deals primarily with the circulation of ideas, models and people, observing them as they move in space but also as they coincide in the court, which was a veritable melting pot in which the various administrations that served the Kings and the various territories belonging to the monarchy developed their own identities, fought for recognition, and for what they considered their proper place in the global hierarchy. Part III explains the forms of dependence and symbiosis established with other European powers, such as Genoa and the United Provinces. Attempting to reorient the politics of these states, political and financial co-dependence often led to bad economic choices. … The Editors and Contributors discard the portrayal of the Iberian monarchies as the accumulation of many bilateral relations arranged in a radial pattern, arguing that these political entities were polycentric, that is to say, they allowed for the existence of many different centers which interacted and thus participated in the making of empire. The resulting political structure was complex and unstable, albeit with a general adhesion to a discourse of loyalty to King and religion.
Frontinus: De Aquaeductu Urbis Romae
Author: Frontinus
Publisher: Cambridge University Press
ISBN: 113945207X
Pages:
Year: 2004-04-15
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In 97 CE Julius Frontinus was appointed by the Emperor Nerva to the post of water commissioner for the city of Rome. In the De Aquaductu Urbis Romae he sets forth his duties, responsibilities and accomplishments during his first year in office. He sketches the history of the aqueducts, furnishes a wealth of technical data and quotes verbatim from legal documents. This edition is the first since 1922 to be based on the single authoritative witness discovered at Monte Cassino in 1429 and is also the first to take into account the idiosyncrasies of its twelfth-century scribe, Peter the Deacon, a man notorious for literary affectations of his own. R. H. Rodgers provides the first full commentary since the early eighteenth century, dividing his attention between text and language on the one hand and content and interpretation on the other.
Radiation and the International Space Station
Author: National Research Council, Division on Engineering and Physical Sciences, Space Studies Board, Commission on Physical Sciences, Mathematics, and Applications, Committee on Solar and Space Physics and Committee on Solar-Terrestrial Research
Publisher: National Academies Press
ISBN: 0309172446
Pages: 92
Year: 2000-02-25
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A major objective of the International Space Station is learning how to cope with the inherent risks of human spaceflight--how to live and work in space for extended periods. The construction of the station itself provides the first opportunity for doing so. Prominent among the challenges associated with ISS construction is the large amount of time that astronauts will be spending doing extravehicular activity (EVA), or "space walks." EVAs from the space shuttle have been extraordinarily successful, most notably the on-orbit repair of the Hubble Space Telescope. But the number of hours of EVA for ISS construction exceeds that of the Hubble repair mission by orders of magnitude. Furthermore, the ISS orbit has nearly twice the inclination to Earth's equator as Hubble's orbit, so it spends part of every 90-minute circumnavigation at high latitudes, where Earth's magnetic field is less effective at shielding impinging radiation. This means that astronauts sweeping through these regions will be considerably more vulnerable to dangerous doses of energetic particles from a sudden solar eruption. Radiation and the International Space Station estimates that the likelihood of having a potentially dangerous solar event during an EVA is indeed very high. This report recommends steps that can be taken immediately, and over the next several years, to provide adequate warning so that the astronauts can be directed to take protective cover inside the ISS or shuttle. The near-term actions include programmatic and operational ways to take advantage of the multiagency assets that currently monitor and forecast space weather, and ways to improve the in situ measurements and the predictive power of current models.
Atoms in the Family
Author: Laura Fermi
Publisher: University of Chicago Press
ISBN: 022614965X
Pages: 277
Year: 2014-10-24
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In this absorbing account of life with the great atomic scientist Enrico Fermi, Laura Fermi tells the story of their emigration to the United States in the 1930s—part of the widespread movement of scientists from Europe to the New World that was so important to the development of the first atomic bomb. Combining intellectual biography and social history, Laura Fermi traces her husband's career from his childhood, when he taught himself physics, through his rise in the Italian university system concurrent with the rise of fascism, to his receipt of the Nobel Prize, which offered a perfect opportunity to flee the country without arousing official suspicion, and his odyssey to the United States.
Indoor and Outdoor Air Pollution and Human Cancer
Author: Lorenzo Tomatis
Publisher: Springer Science & Business Media
ISBN: 3642781977
Pages: 162
Year: 2012-12-06
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The European School of Oncology came into existence to respond to a need for information, education and training in the field of the diagnosis and treatment of cancer. There are two main reasons why such an initiative was considered necessary. Firstly, the teaching of oncology requires a rigorously multidisciplinary approach which is difficult for the Universities to put into practice since their system is mainly disciplinary orientated. Secondly, the rate of technological development that impinges on the diagnosis and treatment of cancer has been so rapid that it is not an easy task for medical faculties to adapt their curricula flexibly. With its residential courses for organ pathologies and the seminars on new techniques (laser, monoclonal antibodies, imaging techniques etc.) or on the principal therapeutic controversies (conservative or mutilating surgery, primary or adjuvant chemotherapy, radiotherapy alone or integrated), it is the ambition of the European School of Oncology to fill a cultural and scientific gap and, thereby, create a bridge between the University and Industry and between these two and daily medical practice. One of the more recent initiatives of ESO has been the institution of permanent study groups, also called task forces, where a limited number of leading experts are invited to meet once a year with the aim of defining the state of the art and possibly reaching a consensus on future developments in specific fields of oncology.
Between the Sheets
Author: Julie Prestsater
Publisher: Createspace Independent Pub
ISBN: 1481221337
Pages: 252
Year: 2012-12-10
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The passion between Mel and Ty is undeniable. But do they have the love to go the distance? Melissa Cruz has been in love with Tyler Gelson, her best friend's Sex God of an older brother, since ... well, since forever. She's let Tyler slip away in the past, her fears getting the best of her. But this time, this time she is determined to get what she wants and what she wants is a second chance at love. There is only one problem. Tyler lives miles away. Is love worth packing everything up and leaving her family and best friend behind? Tyler Gelson has admired his little sister's spitfire of a friend, Melissa Cruz, since the day she brought her home. Over the years he watched her turn from gangly kid into one hell of a hot woman and he has definitely taken notice. He has fallen and he has fallen hard. But with love comes decisions and he may have to make the biggest one of all. Is love worth leaving his dream job and moving back home? When unexpected news comes their way, will a long distance relationship be too much to handle? Or will these soul-mates prove that the love they share is more than just what happens Between The Sheets? (Although, that's pretty damn good too.)
Modern Methods for Analysing Archaeological and Historical Glass
Author: Koen H. A. Janssens
Publisher: John Wiley & Sons
ISBN: 0470516143
Pages: 746
Year: 2013-03-18
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The two volumes are contained in a case.
The Chornobyl Accident
Author: Victor Poyarkov, George J. Vargo
Publisher:
ISBN: 1574770829
Pages: 271
Year: 2000
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The authors, all of whom are Ukrainian and Russian scientists involved with the Chornobyl nuclear power plant since the April 1986 accident, present a comprehensive review of the accident. In addition, they present a risk assessment of the remains of the destroyed reactor and its surrounding shelter, Chornobyl radioactive waste storage and disposal sites, and environmental contamination in the region. The authors explore such questions as the risks posed by a collapse of the shelter, radionuclide migration from storage and disposal facilities in the exclusion zone, and transfer from soil to vegetation and its potential regional impact.
Verdi's Macbeth
Author:
Publisher:
ISBN:
Pages:
Year: 1984
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